contributing

CONTRIBUTING.md

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+# Contributing
+
+## Swearing
+
+Swearing is forbidden:
+
+- if your post contains nothing but swearing, you will be blocked
+- if your post contains swearing and content, you will be warned and required to edit your post. If you do it again, you will be blocked
+
+Constructive disagreement will never be interfered with.
+
+What constitues swearing is hard to define, and will be decided by the dictators of this repository.
+
+Keep in mind that my Chinese sucks, so I may not get the full nuance of your comment.
+
+But in general, if you waste my time with a non-nice notification without teaching me anything, you are at grave danger of losing the invaludable priviledge to commenting on this repo.
+
+If you with to appeal a block, please contact maintainers through some channel other than GitHub, and your request will be reviewed.