Add CONTRIBUTING.md

Move the existing contribution guidelines to a dedicated file for future
extensions.

Signed-off-by: Mike Rapoport <rppt@linux.ibm.com>

1 files changed, 19 insertions, 0 deletions

diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
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+[![master](https://travis-ci.org/checkpoint-restore/criu.svg?branch=master)](https://travis-ci.org/checkpoint-restore/criu)
+[![development](https://travis-ci.org/checkpoint-restore/criu.svg?branch=criu-dev)](https://travis-ci.org/checkpoint-restore/criu)
+[![Codacy Badge](https://api.codacy.com/project/badge/Grade/55251ec7db28421da4481fc7c1cb0cee)](https://www.codacy.com/app/xemul/criu?utm_source=github.com&utm_medium=referral&utm_content=xemul/criu&utm_campaign=Badge_Grade)
+<p align="center"><img src="https://criu.org/w/images/1/1c/CRIU.svg" width="128px"/></p>
+
+## How to contribute to CRIU
+
+CRIU project is (almost) the never-ending story, because we have to always keep up with the
+Linux kernel supporting checkpoint and restore for all the features it provides. Thus we're
+looking for contributors of all kinds -- feedback, bug reports, testing, coding, writing, etc.
+Here are some useful hints to get involved.
+
+* We have both -- [very simple](https://github.com/checkpoint-restore/criu/issues?q=is%3Aissue+is%3Aopen+label%3Aenhancement) and [more sophisticated](https://github.com/checkpoint-restore/criu/issues?q=is%3Aissue+is%3Aopen+label%3A%22new+feature%22) coding tasks;
+* CRIU does need [extensive testing](https://github.com/checkpoint-restore/criu/issues?q=is%3Aissue+is%3Aopen+label%3Atesting);
+* Documentation is always hard, we have [some information](https://criu.org/Category:Empty_articles) that is to be extracted from people's heads into wiki pages as well as [some texts](https://criu.org/Category:Editor_help_needed) that all need to be converted into useful articles;
+* Feedback is expected on the github issues page and on the [mailing list](https://lists.openvz.org/mailman/listinfo/criu);
+* We accept github pull requests and this is the preferred way to contribute to CRIU. If you prefer to send patches by email, you are welcome to send them to [the devel list](http://criu.org/How_to_submit_patches);
+* Spread the word about CRIU in [social networks](http://criu.org/Contacts);
+* If you're giving a talk about CRIU -- let us know, we'll mention it on the [wiki main page](https://criu.org/News/events);