Add contributor's info

CONTRIBUTING.md

@@ -0,0 +1,69 @@
+# Contributing to MineClone 2
+So you want to MineClone 2?
+Wow, thank you! :-)
+
+But first, some things to note:
+
+MineClone 2's development target is to make a free software clone of Minecraft,
+***version 1.11*** (later: 1.12), ***PC edition***.
+
+MineClone 2 is maintained by one person. Namely, Wuzzy. You can find me,
+Wuzzy, in the Minetest forums (forums.minetest.net), in IRC in the #minetest
+channel on irc.freenode.net. And finally, you can send e-mails to
+<Wuzzy2@mail.ru>.
+
+There is **no** guarantee I will accept anything from anybody.
+
+By sending me patches or asking me to include your changes in this subgame,
+you agree that they fall under the terms of the LGPLv2.1, which basically
+means they will become part of a free software.
+
+## The suggested workflow
+I don't **dictate** your workflow, but in order to work with me in an efficient
+way, you can follow my suggestions.
+
+For small and medium changes:
+
+* Fork the repository
+* Do your change in a new branch
+* Upload the repository somewhere where it can be accessed from the Internet
+* Ask me to pull in your changes (and briefly say what you're changed)
+
+For small changes, sending me a patch is also good.
+
+For big changes: Same as above, but consider notifying me first to avoid
+duplicate work and possible tears of rejection. ;-)
+
+## Quality remarks
+Again: There is ***no*** guarantee I will accept anything from anything.
+But I will gladly take in code from others when I feel it saves me work
+in the long run.
+
+### Inclusion criteria
+Depending on what you add, the chances for inclusion vary:
+
+### High chance for inclusion
+* Gameplay features in Minecraft which are missing in MineClone 2
+
+### Medium chance for inclusion (discuss first)
+* Features which don't a impact on gameplay
+* GUI improvement
+* Features from pocket or console edition
+
+### Low chance for inclusion (discuss/optimize first)
+* Overhaul of architecture / mod structure
+* Mass-itemstring changes all over the place
+* Added files have a unusual high file size
+* Indentation looks like crazy
+* Single commits which add several unrelated things
+
+### Instant rejection
+* Gameplay features which don't exist in Minecraft
+* Proprietary **anything**
+* Code contains `minetest.env` anywhere
+
+## Coding style guide
+* Indentations should reflect the code flow
+* Use tabs, not spaces for indentation
+* Never use `minetest.env`
+

README.md

@@ -142,6 +142,12 @@ core feature.
 Finally, any limitations found in Minetest (the game engine) will be written down in the course
 of development.
 
+## Other readme files
+
+* `LICENSE.txt`: The LGPLv2.1 license text
+* `CONTRIBUTING.md`: Information for those who want to contribute
+* `MISSING_ENGINE_FEATURES.md`: List of missing features in Minetest which MineClone 2 would need for improvement
+
 ## Credits
 There are so many people to list (sorry).