Fix all headers so the first headlines is always at level 1 and child headlines are always exactly 1 level below their parent. Remove obsolete compiling_everything document. The contents of this file in the repository have already been split into separate compiling_everything files. The online version at https://www.teeworlds.com/?page=docs&wiki=compiling_everything is already identical to https://www.teeworlds.com/?page=docs&wiki=hacking.

This would include for example

• File outlining how to write issues and pull requests.

• This file should also be part of the documentation repository (https://github.com/teeworlds/documentation/issues/25). Also see further comments there.
• Issue template
• Pull request template, including

• Describe changes

• Include screenshots for visual changes

• Create a separate pull request to update the documentation, if adding commands, settings etc.

See https://docs.github.c...