Move the guidelines to /docs

.github/ISSUE_TEMPLATE/proposal.yml

@@ -5,7 +5,7 @@ body:
   - type: markdown
     attributes:
       value: |
-        Please check if the feature aligns with the [Game Design Principles](https://github.com/PixelGuys/Cubyz/blob/master/GAME_DESIGN_PRINCIPLES.md) before making an issue.
+        Please check if the feature aligns with the [Game Design Principles](https://github.com/PixelGuys/Cubyz/blob/master/docs/GAME_DESIGN_PRINCIPLES.md) before making an issue.
   - type: textarea
     id: description
     attributes:

README.md

@@ -50,10 +50,10 @@ sudo apt install libgl-dev libasound2-dev libx11-dev libxcursor-dev libxrandr-de
 
 # Contributing
 ### Code
-Check out the [Contributing Guidelines](https://github.com/PixelGuys/Cubyz/blob/master/CONTRIBUTING.md)
+Check out the [Contributing Guidelines](https://github.com/PixelGuys/Cubyz/blob/master/docs/CONTRIBUTING.md)
 
 ### Gameplay Additions
-Check out the [Game Design Principles](https://github.com/PixelGuys/Cubyz/blob/master/GAME_DESIGN_PRINCIPLES.md)
+Check out the [Game Design Principles](https://github.com/PixelGuys/Cubyz/blob/master/docs/GAME_DESIGN_PRINCIPLES.md)
 
 ### Textures
 If you want to add new textures, make sure they fit the style of the game. It's recommended that you have baseline skills in pixel art before attempting to make textures. A great collection of tutorials can be found [here](https://lospec.com/pixel-art-tutorials)

docs/CONTENT_SUGGESTIONS.md

@@ -3,6 +3,6 @@
 It is easy to suggest something, but often it's much harder to implement and check if it fits the game.
 So, before making a suggestion here on github (you can of course freely discuss ideas on the community discord server), please do the following steps:
 
-- check if it follows the [Game Design Principles](https://github.com/PixelGuys/Cubyz/blob/master/GAME_DESIGN_PRINCIPLES.md)
+- check if it follows the [Game Design Principles](https://github.com/PixelGuys/Cubyz/blob/master/docs/GAME_DESIGN_PRINCIPLES.md)
 - make a reference implementation in the form of an addon, mod or fork of Cubyz (no content from other games)
 - create a pull request with the suggested changes or make an issue using the blank issue template, don't forget to add some screenshots