Add CONTRIBUTING.md

Will Wray · Will Wray · commit 7683e225c42c · 2023-06-18T14:14:38.000-03:00
diff --git a/CONTRIBUTING.md b/CONTRIBUTING.md
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+# Contributing to `tupl`
+
+1. Read the smallprint
+2. Contribute
+
+<sup><b>Smallprint</b><br>
+By submitting a pull request or a patch, you represent that
+you have the right to license your contribution to the `tupl` project
+owners and to the community and
+agree that your contributions are licensed under the BSL 1.0 license.</sup>
