Give more on information on how to post a testing task in the forum

What does this MR do?

Try to make it more clear in the documentation how a testing task has to be posted.

How confident are you it won't break things if deployed?

Just documentation.

Checklist

• added a test, or explain why one is not needed/possible... -> just documentation
• no unrelated changes
• asked someone for a code review
• set a "for:" label to indicate who will be affected by this change
• used "state:" labels to track this MR's state until it was beta tested
• added an entry to CHANGELOG.md
• added a short text that can be used in the release notes -> just for dev
• Once your MR has been merged, you are responsible to create a testing issue in the Beta Testing forum: https://foodsharing.de/?page=bezirk&bid=734&sub=forum
  • Consider writing a detailed description in German.
  • Describe in a few sentences, what should be tested from a user perspective.
  • Also mention different settings (e.g. different browsers, roles, ...) how this change can be tested.
  • Be aware, that also non technical people should understand.