📝 Updates changelog and add release doc

CHANGELOG.md

@@ -2,6 +2,12 @@
 
 ## [Unreleased]
     - Fixed GetAllDevices() COMError, refs #15, #28 and #30 (@micolous and @reversefold)
+    - New IAudioSessionEvents callbacks support, refs #27, #36 (@TurboAnonym)
+    - IAudioSessionControl GetState fix, refs #32, #37 (@TurboAnonym)
+    - Adding AudioUtilities.GetMicrophone(), refs #39 (@alebzk)
+    - Reorganize / Split the pycaw.pycaw file in modules and subpackages, refs #38 (@TurboAnonym)
+    - OnSessionCreated support + Wrapper for callbacks, refs #40 (@TurboAnonym)
+    - "Magic" module, easy session control, refs #42 (@TurboAnonym)
 
 ## [20190904]
     - Fixed enum34 dependency, refs #17 (@mmxfguerin)

docs/Release.md

@@ -0,0 +1,46 @@
+# How to release
+
+This is documenting the release process.
+
+
+## Git flow & CHANGELOG.md
+
+Make sure the CHANGELOG.md is up to date and follows the http://keepachangelog.com guidelines.
+Start the release with git flow:
+```batch
+git flow release start vYYYYMMDD
+```
+Now update the [CHANGELOG.md](/CHANGELOG.md) `[Unreleased]` section to match the new release version.
+Also update the `version` string in the [setup.py](/setup.py) file. Then commit and finish release.
+```batch
+git commit -a -m ":bookmark: vYYYYMMDD"
+git flow release finish
+```
+Push everything, make sure tags are also pushed:
+```batch
+git push
+git push origin master:master
+git push --tags
+```
+
+## Publish to PyPI
+Build it:
+```batch
+python setup.py sdist bdist_wheel
+```
+Check archive content:
+```batch
+tar -tvf dist\pycaw-*.tar.gz
+```
+Upload:
+```batch
+twine upload dist\pycaw-*.tar.gz
+```
+
+## GitHub
+
+Got to GitHub [Release/Tags](https://github.com/AndreMiras/pycaw/tags), click "Add release notes" for the tag just created.
+Add the tag name in the "Release title" field and the relevant CHANGELOG.md section in the "Describe this release" textarea field.
+
+## Post release
+Update the [setup.py](/setup.py) `version string` with `YYYYMMDD.dev0`.