Update getting started sectoin

Author: ManuelSchneid3r

src/gettingstarted/contributing.md

@@ -38,7 +38,7 @@ According to copyright laws, you wrote the code and hold copyright.
 The code transferred has to be permissive open source licensed (GPL is not permissive).
 Once transferred the initial repo has to pass peer reviewing before becoming a submodule.
 
-## Volunteer as code reviewer
+## Code reviews
 
 Lots of PRs have been stuck in the reviewing pipeline for years because nobody reviewed them.
 Your efforts helps plugins being shipped faster. 
@@ -47,14 +47,15 @@ You can also join the [reviewer teams](https://github.com/orgs/albertlauncher/te
 These teams will be assigned on new pull requests and as such you will get a notification.
 Leave a message with your GitHub username to get an invite.
 
-## Volunteer as plugin maintainer
+## Plugin maintenance
 
 Lots of plugins do not have a maintainer.
 If you are using a plugin a lot and have C++ or Python skills you are probably a good plugin maintainer. 
 Just send a PR adding your GitHub username to the maintainers array of the plugin metadata and you're in.
 Revert it to step back. 
 If you are a maintainer you will be assigned on new issues and pull requests.
 
+<!--
 ## Changes to the core application
 
 Currently the core app is source available and proprietary.
@@ -63,6 +64,7 @@ Lots of additions had to be reverted in the past.
 I learned my lessons and will not merge contributions carelessly.
 Probably you will not have fun matching my standards of defensive code.
 If you still want to work on the core, be sure to get in touch with me _before_ starting.
+-->
 
 ## Translations