Made it clearer that building is for contributors only in `COMPILING.md`
Fixed 2 dead links in `CONTRIBUTING.md`, that were caused by separating
`COMPILING.md` and file structure changed to `pr-guide.md`
* Fixed faulty colon formatting and wrong translations
(The wrong translatations were mostly my fault but you don't need to know that)
* Fixed a typo
* Fixed a couple more colons
* Changed DRamTooltip
* Update fr_FR.json