include Platform id's in sphinx generated documentation + some fixed

README.md

@@ -64,7 +64,8 @@ if __name__ == "__main__":
 The client has a built-in Python 3.7 interpreter, so the integrations are delivered as python modules.
 In order to be found by GOG Galaxy 2.0 an integration folder should be placed in [lookup directory](#deploy-location). Beside all the python files, the integration folder has to contain [manifest.json](#deploy-manifest) and all third-party dependencies. See an [examplary structure](#deploy-structure-example).
 
-### <a name="deploy-location"></a> Lookup directory:
+### Lookup directory
+<a name="deploy-location"></a>
 - Windows:
 
     `%localappdata%\GOG.com\Galaxy\plugins\installed`
@@ -73,7 +74,8 @@ In order to be found by GOG Galaxy 2.0 an integration folder should be placed in
 
     `~/Library/Application Support/GOG.com/Galaxy/plugins/installed`
 
-### <a name="deploy-manifest"></a> Manifest
+### Manifest
+<a name="deploy-manifest"></a> 
 Obligatory JSON file to be placed in a integration folder.
 
 ```json

docs/source/index.rst

@@ -7,6 +7,7 @@ GOG Galaxy Integrations Python API
 
    Overview <overview>
    API <galaxy.api>
+   Platform ID's <platforms>
 
 Index
 -------------------

docs/source/overview.rst

@@ -5,3 +5,11 @@
 
 .. mdinclude:: ../../README.md
    :start-line: 6
+   :end-line: 26
+   
+.. excluding Platforms Id's link
+
+:ref:`platforms-link`.
+
+.. mdinclude:: ../../README.md
+   :start-line: 28