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+# Contributing
+
+Merlin is open source software, and we welcome contribution!
+
+### Branches
+* `master` -- our default branch. It's the stable branch, for users.
+
+* `develop` -- the branch you want to fork from, and make pull requests into.
+
+### Squash
+Before issuing a pull request, please [squash your commits](https://github.com/LLNL/merlin/wiki/Squash-commits) down to one concise commit message.
+
+### More...
+Complete developer documentation is [here](https://merlin.readthedocs.io/en/latest/merlin_developer.html).