Docs: fix the invalid link (#1315)

docs/advanced/elec_properties/Berry_phase.md

@@ -1,6 +1,6 @@
 # Berry Phase Calculation
 
-From version 2.0.0, ABACUS is capable of calculating macroscopic polarization of insulators by using the Berry phase method, known as the ["modern theory of polarization"](https://www.sciencedirect.com/science/article/abs/pii/S0022459612003234). To calculate the polarization, you need first to do a self-consistent calculation to get the converged charge density. Then, do a non-self-consistent calculation with berry_phase setting to 1. You need also to specify the direction of the polarization you want to calculate. An example is given in the directory [examples/berryphase/lcao_PbTiO3](#https://github.com/deepmodeling/abacus-develop/tree/develop/examples/berryphase/lcao_PbTiO3).
+From version 2.0.0, ABACUS is capable of calculating macroscopic polarization of insulators by using the Berry phase method, known as the ["modern theory of polarization"](https://www.sciencedirect.com/science/article/abs/pii/S0022459612003234). To calculate the polarization, you need first to do a self-consistent calculation to get the converged charge density. Then, do a non-self-consistent calculation with berry_phase setting to 1. You need also to specify the direction of the polarization you want to calculate. An example is given in the directory [examples/berryphase/lcao_PbTiO3](https://github.com/deepmodeling/abacus-develop/tree/develop/examples/berryphase/lcao_PbTiO3).
 
 To run this example, first do a self-consistent calculation:
 ```

docs/advanced/elec_properties/Mulliken.md

@@ -1,6 +1,6 @@
 # Mulliken Charge Analysis
 
-From version 2.1.0, ABACUS has the function of Mulliken population analysis. The example can be found in [examples/mulliken](#https://github.com/deepmodeling/abacus-develop/tree/develop/examples/mulliken). \
+From version 2.1.0, ABACUS has the function of Mulliken population analysis. The example can be found in [examples/mulliken](https://github.com/deepmodeling/abacus-develop/tree/develop/examples/mulliken). \
 To use this function, set ‘out_mul’ to ‘1’ in the INPUT file. After calculation, there will be an output file named mulliken.txt in the output directory. In the file, there are contents like:
 
 ```

docs/advanced/elec_properties/band.md

@@ -1,7 +1,7 @@
 # Extracting Band Structure
 
-ABACUS can calculate the energy band structure, and the exampples can be found in [examples/band](#https://github.com/deepmodeling/abacus-develop/tree/develop/examples/band).\
-Similar to the [DOS case](#https://abacus-rtd.readthedocs.io/en/latest/advanced/elec_properties/dos.html), we first, do a ground-state energy calculation ***with one additional keyword "[out_chg](#https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#out-chg)" in the INPUT file***:
+ABACUS can calculate the energy band structure, and the exampples can be found in [examples/band](https://github.com/deepmodeling/abacus-develop/tree/develop/examples/band).\
+Similar to the [DOS case](https://abacus-rtd.readthedocs.io/en/latest/advanced/elec_properties/dos.html), we first, do a ground-state energy calculation ***with one additional keyword "[out_chg](https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#out-chg)" in the INPUT file***:
 
 ```
 out_chg             1

docs/advanced/elec_properties/dos.md

@@ -2,8 +2,8 @@
 
 ## DOS
 
-ABACUS can calculate the density of states (DOS) of the system, and the exampples can be found in [examples/dos](#https://github.com/deepmodeling/abacus-develop/tree/develop/examples/dos).\
-We first, do a ground-state energy calculation ***with one additional keyword "[out_chg](#https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#out-chg)" in the INPUT file***:
+ABACUS can calculate the density of states (DOS) of the system, and the exampples can be found in [examples/dos](https://github.com/deepmodeling/abacus-develop/tree/develop/examples/dos).\
+We first, do a ground-state energy calculation ***with one additional keyword "[out_chg](https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#out-chg)" in the INPUT file***:
 
 ```
 out_chg              1
@@ -43,28 +43,28 @@ Some parameters in the INPUT file are explained:
 - calculation
 
     choose which kind of calculation: scf calculation, nscf calculation, structure relaxation or Molecular Dynamics. Now we need to do one step of nscf calculation.
-    Attention: This is a main variable of ABACUS, and for its more information please see the [here](#https://abacus-rtd--1282.org.readthedocs.build/en/1282/advanced/input_files/input-main.html#calculation).
+    Attention: This is a main variable of ABACUS, and for its more information please see the [here](https://abacus-rtd--1282.org.readthedocs.build/en/1282/advanced/input_files/input-main.html#calculation).
 
 - pw_diag_thr
 
-    threshold for the CG method which diagonalizes the Hamiltonian to get eigenvalues and eigen wave functions. If one wants to do nscf calculation, pw_diag_thr needs to be changed to a smaller account, typically smaller than 1.0e-3. Note that this parameter only apply to plane-wave calculations that employ the CG or Davidson method to diagonalize the Hamiltonian. For its more information please see the [here](#https://abacus-rtd--1282.org.readthedocs.build/en/1282/advanced/input_files/input-main.html#pw_diag_thr).
+    threshold for the CG method which diagonalizes the Hamiltonian to get eigenvalues and eigen wave functions. If one wants to do nscf calculation, pw_diag_thr needs to be changed to a smaller account, typically smaller than 1.0e-3. Note that this parameter only apply to plane-wave calculations that employ the CG or Davidson method to diagonalize the Hamiltonian. For its more information please see the [here](https://abacus-rtd--1282.org.readthedocs.build/en/1282/advanced/input_files/input-main.html#pw_diag_thr).
 
     For LCAO calculations, this parameter will be neglected !
 - init_chg
 
-    the type of starting density. When doing scf calculation, this variable can be set ”atomic”. When doing nscf calculation, the charge density already exists(eg. in SPIN1_CHG), and the variable should be set as ”file”. It means the density will be read from the existing file SPIN1_CHG. For its more information please see the [here](#https://abacus-rtd--1282.org.readthedocs.build/en/1282/advanced/input_files/input-main.html#init_chg).
+    the type of starting density. When doing scf calculation, this variable can be set ”atomic”. When doing nscf calculation, the charge density already exists(eg. in SPIN1_CHG), and the variable should be set as ”file”. It means the density will be read from the existing file SPIN1_CHG. For its more information please see the [here](https://abacus-rtd--1282.org.readthedocs.build/en/1282/advanced/input_files/input-main.html#init_chg).
 
 - out_dos
 
-    output density of state(DOS). The unit of DOS is `(number of states)/(eV * unitcell)`. For its more information please see the [here](#https://abacus-rtd--1282.org.readthedocs.build/en/1282/advanced/input_files/input-main.html#out_dos).
+    output density of state(DOS). The unit of DOS is `(number of states)/(eV * unitcell)`. For its more information please see the [here](https://abacus-rtd--1282.org.readthedocs.build/en/1282/advanced/input_files/input-main.html#out_dos).
 
 - dos_sigma
 
-    the gaussian smearing parameter(DOS), in unit of eV. For its more information please see the [here](#https://abacus-rtd--1282.org.readthedocs.build/en/1282/advanced/input_files/input-main.html#dos_sigma). 
+    the gaussian smearing parameter(DOS), in unit of eV. For its more information please see the [here](https://abacus-rtd--1282.org.readthedocs.build/en/1282/advanced/input_files/input-main.html#dos_sigma). 
 
 - read_file_dir
 
-    the location of electron density file. For its more information please see the [here](#https://abacus-rtd--1282.org.readthedocs.build/en/1282/advanced/input_files/input-main.html#read_file_dir).
+    the location of electron density file. For its more information please see the [here](https://abacus-rtd--1282.org.readthedocs.build/en/1282/advanced/input_files/input-main.html#read_file_dir).
 
 To have an accurate DOS, one needs to have a denser k-point mesh. For example, the KPT file can be set as:
 ```

docs/advanced/elec_properties/potential.md

@@ -1,6 +1,6 @@
 # Extracting Electrostatic Potential
 
-From version 2.1.0, ABACUS has the function of outputing electrostatic potential, which consists of Hartree potential and the local pseudopotential. To use this function, set ‘[out_pot](#https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#out-pot)’ to ‘2’ in the INPUT file. Here is an example for the [Si-111 surface](#https://github.com/deepmodeling/abacus-develop/tree/develop/examples/electrostatic_potential/lcao_Si), and the INPUT file is:
+From version 2.1.0, ABACUS has the function of outputing electrostatic potential, which consists of Hartree potential and the local pseudopotential. To use this function, set ‘[out_pot](https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#out-pot)’ to ‘2’ in the INPUT file. Here is an example for the [Si-111 surface](https://github.com/deepmodeling/abacus-develop/tree/develop/examples/electrostatic_potential/lcao_Si), and the INPUT file is:
 
 ```
 INPUT_PARAMETERS

docs/advanced/elec_properties/wfc.md

@@ -1,16 +1,16 @@
 # Extracting Wave Functions
 
-ABACUS is able to output electron wave functions in both PW and LCAO basis calculations. One can find the examples in [examples/wfc](#https://github.com/deepmodeling/abacus-develop/tree/develop/examples/wfc).
+ABACUS is able to output electron wave functions in both PW and LCAO basis calculations. One can find the examples in [examples/wfc](https://github.com/deepmodeling/abacus-develop/tree/develop/examples/wfc).
 
 ## wave function in G space
-For the wave function in G space, one only needs to do a ground-state energy calculation with one additional keyword in the INPUT file: '***[out_wfc_pw](#https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#out-wfc-pw)***' for PW basis calculation, and '***[out_wfc_lcao](#https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#out-wfc-lcao)***' for LCAO basis calculation.
+For the wave function in G space, one only needs to do a ground-state energy calculation with one additional keyword in the INPUT file: '***[out_wfc_pw](https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#out-wfc-pw)***' for PW basis calculation, and '***[out_wfc_lcao](https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#out-wfc-lcao)***' for LCAO basis calculation.
 In the PW basis case, the wave function is output in a file called `WAVEFUNC${k}.txt`, where `${k}` is the index of K point. \
 In the LCAO basis case, several `LOWF_K_${k}.dat` files will be output in multi-k calculation and `LOWF_GAMMA_S1.dat` in gamma-only calculation. 
 
 ## wave function in real space
 
-One can also choose to output real-space wave function in PW basis calculation with the key word ***[out_wfc_r](#https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#out_wfc_r)***.
+One can also choose to output real-space wave function in PW basis calculation with the key word ***[out_wfc_r](https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#out_wfc_r)***.
 
 After calculation, an additional directory named `wfc_realspace` will appear in the `OUT.${system}` directory.
 
-Notice: when the ***[basis_type](https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#basis_type)*** is `lcao`, only `ienvelope` ***[calculation](#https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#calculation)*** is effective. An example is [examples/wfc/lcao_ienvelope_Si2](#https://github.com/deepmodeling/abacus-develop/tree/develop/examples/wfc/lcao_ienvelope_Si2). 
+Notice: when the ***[basis_type](https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#basis_type)*** is `lcao`, only `ienvelope` ***[calculation](https://abacus-rtd.readthedocs.io/en/latest/advanced/input_files/input-main.html#calculation)*** is effective. An example is [examples/wfc/lcao_ienvelope_Si2](https://github.com/deepmodeling/abacus-develop/tree/develop/examples/wfc/lcao_ienvelope_Si2).