Update symmetry.rst

docs/source/symmetry.rst

@@ -28,8 +28,8 @@ Cs(M)
 It is usually used for non-symmetric planar molecules such as triatomics XYZ.  
 
 
-C\ :sub:`2v`(M)
-===============
+C\ :sub:`2v`\ (M)
+=================
 
 
 ``C2v(M)`` is a molecular symmetry consisting of 4 irreps: :math:`A_1`, :math:`A_2`, :math:`B_1`, :math:`B_2`. The meaning of these irreps depends on the molecule  as well as its embedding. The characters are shown in the following table
@@ -46,10 +46,10 @@ C\ :sub:`2v`(M)
 |:math:`B_2` |      1      | -1   |       1     |      -1        | 
 +------------+-------------+------+-------------+----------------+
 
-where :math:`E`, (12), :math:`E^*` and (12)\ :sup:`*` are the 4 point group operations. Typical C\ :sub:`2v`(M) molecules are XY\ :sub:`2` (e.g. water, H\ :sub:`2`S), ZXY\ :sub:`2` (e.g. formaldehyde. )
+where :math:`E`, (12), :math:`E^*` and (12)\ :sup:`*` are the 4 point group operations. Typical C\ :sub:`2v`\ (M) molecules are XY\ :sub:`2` (e.g. water, H\ :sub:`2`\ S), ZXY\ :sub:`2` (e.g. formaldehyde.)
 
 C3v(M)
-=====
+======
 
 ``C3v(M)`` is a molecular symmetry consisting of 3 irreps: :math:`A_1`, :math:`A_2`, :math:`E` and 6 operations: 
 
@@ -66,11 +66,11 @@ C3v(M)
  :math:`E`          2        -1           0
 ============= ============ ======= ================
 
-It can be used for the molecules PH\ :sub:`3`, SbH\ :sub:`3`, SO\ :sub:`3`, CH\ :sub:`3`Cl, CH\ :sub:`3`Cl, isotopologue CDH\ :sub:`3` etc.
+It can be used for the molecules PH\ :sub:`3`, SbH\ :sub:`3`, SO\ :sub:`3`, CH\ :sub:`3`\ Cl, CH\ :sub:`3`\ Cl, isotopologue CDH\ :sub:`3` etc.
 
 
-D3h(M)
-======
+D\ :sub:`3h`\ (M)
+=================
 
 ``D3h(M)`` is a molecular symmetry consisting of 6 irreps: :math:`A'_1`, :math:`A'_2`, :math:`E'`, :math:`A''_1`, :math:`A''_2`, :math:`E''` and 12 operations:
 
@@ -94,7 +94,7 @@ It can be used for the molecules PH\ :sub:`3`, SbH\ :sub:`3`, SO\ :sub:`3`, CH\
                :math:`E`    (123)   (23)\ :sup:`*`
                             (132)   (12)\ :sup:`*`
                                     (23)\ :sup:`*`
-============= ============ ======= ================
+------------- ------------ ------- ----------------
  :math:`A_1`        1         1           1
  :math:`A_2`        1         1          -1
  :math:`E`          2        -1           0