extract build instructions into a file

README.md

@@ -11,60 +11,6 @@ Currently, version 2 is in alpha state, but it implements the most important fun
 * Caustic calculation for resonators and single-pass systems.
 
 
-[Here](http://rezonator.orion-project.org/index.php?page=ver2) are some details and prebuild packages for Windows, Linux.
-
-
-## Prepare build environment
-
-### Clone git repository
-```bash
-git clone https://github.com/orion-project/rezonator2
-cd rezonator2
-git submodule init
-git submodule update
-```
-Note that submodules are in 'detached head' state by default.
-
-### Prepare third-party libraries
-
-#### Linux/MacOS
-```bash
-chmod +x ./scripts/prepare_deps.sh
-./scripts/prepare_deps.sh
-```
-
-#### Windows
-Windows does not provide default command line tools like `wget`, `tar` or `make`, so you have to prepare dependencies using tools you have installed following [these instructions](docs/prepare-deps-win.md).
-
-
-## Build
-Where it is possible, commands are the same for different OS, with some exceptions. E.g. Windows doesn't have `sudo` command, and you have to run `cmd` as Administrator instead. 
-
-### Application
-
-#### Linux/MacOS
-```bash
-./scripts/build_release.sh
-```
-#### Windows
-```bash
-scripts\build_release.bat
-```
-Ensure that Qt bin directory is in your `PATH` to make above scripts working. On Windows, you have to put MinGW `bin` directory into the `PATH` too.
-
-Note that above scripts do the full rebuild and it takes a while. Use *Qt Creator IDE* to do dev builds. Just open project file `rezonator.pro` in the IDE and configure it to use some of the installed Qt-kits. Any of modern Qt 5.8+ kits should suit.
-
-### Source code documentation
-```bash
-sudo apt install doxygen
-sudo apt install graphviz
-mkdir -p out/src-doc
-doxygen
-```
-
-### User manual
-See [building documentation](./help/README.md).
-
-## Run
-Target file is `bin/rezonator` (Linux), `bin/rezonator.app` (MacOS), or `bin\rezonator.exe` (Windows). 
+See [Home page](http://rezonator.orion-project.org/index.php?page=ver2) or [Releases](https://github.com/orion-project/rezonator2/releases) for binary packages for Windows, Linux and macOS. See [build instructions](./docs/build.md) for building from source code.
 
+![Main Window](./img/main_window.png)

docs/build.md

@@ -0,0 +1,55 @@
+# Building from sources
+
+## Prepare build environment
+
+### Clone git repository
+```bash
+git clone https://github.com/orion-project/rezonator2
+cd rezonator2
+git submodule init
+git submodule update
+```
+Note that submodules are in 'detached head' state by default.
+
+### Prepare third-party libraries
+
+#### Linux/MacOS
+```bash
+chmod +x ./scripts/prepare_deps.sh
+./scripts/prepare_deps.sh
+```
+
+#### Windows
+Windows does not provide default command line tools like `wget`, `tar` or `make`, so you have to prepare dependencies using tools you have installed following [these instructions](prepare-deps-win.md).
+
+
+## Build
+Where it is possible, commands are the same for different OS, with some exceptions. E.g. Windows doesn't have `sudo` command, and you have to run `cmd` as Administrator instead. 
+
+### Application
+
+#### Linux/MacOS
+```bash
+./scripts/build_release.sh
+```
+#### Windows
+```bash
+scripts\build_release.bat
+```
+Ensure that Qt bin directory is in your `PATH` to make above scripts working. On Windows, you have to put MinGW `bin` directory into the `PATH` too.
+
+Note that above scripts do the full rebuild and it takes a while. Use *Qt Creator IDE* to do dev builds. Just open project file `rezonator.pro` in the IDE and configure it to use some of the installed Qt-kits. Any of modern Qt 5.8+ kits should suit.
+
+### Source code documentation
+```bash
+sudo apt install doxygen
+sudo apt install graphviz
+mkdir -p out/src-doc
+doxygen
+```
+
+### User manual
+See [building documentation](../help/README.md).
+
+## Run
+Target file is `bin/rezonator` (Linux), `bin/rezonator.app` (MacOS), or `bin\rezonator.exe` (Windows).