Add documentation for release with bundler and fastlane #noissue

README.md

@@ -104,13 +104,34 @@ following to build for Android `fastlane android build`.
 
 ##### Android
 
-Use `fastlane android beta` to build and upload a new beta version to the Play Store.
+It's recommended you set up `fastlane` via `bundler` (you need this to be installed on your machine).
+
+Go into the `android/` sub-directory of the project
+
+```shell
+bundle config set --local path 'vendor/bundle'
+bundle install
+
+# update fastlane when needed
+bundle update fastlane
+
+# build only
+bundle exec fastlane android build
+
+# deploy (push BETA to app store)
+bundle exec fastlane android beta
+
+# deploy (push to app store)
+bundle exec fastlane android deploy
+```
 
 ##### iOS
 
 For iOS you need to execute `fastlane ios build` before uploading to testflight with
 `fastlane ios beta`.
 
+Probably do the same Ruby/fastlane setup as mentioned under the _Android_ section.
+
 ### Release manually (not recommended)
 
 See the following links on how to setup:

android/.gitignore

@@ -5,3 +5,5 @@ gradle-wrapper.jar
 /gradlew.bat
 /local.properties
 GeneratedPluginRegistrant.java
+.bundle
+vendor/