docs: Add note about community calls

This should close #394, as we have moved the calls issues to that repository.

Author: RichardLitt

README.md

@@ -246,7 +246,9 @@ To understand a little bit about the architecture, check out a visualization of
 
 We would be happy to accept PRs! If you want to work on something, it'd be good to talk beforehand to make sure nobody else is working on it. You can reach us on IRC [#orbitdb](http://webchat.freenode.net/?channels=%23orbitdb) on Freenode, or in the comments of the [issues section](https://github.com/orbitdb/orbit-db/issues).
 
-A good place to start are the issues labelled ["help wanted"](https://github.com/orbitdb/orbit-db/issues?q=is%3Aopen+is%3Aissue+label%3A%22help+wanted%22+sort%3Areactions-%2B1-desc) or the project's [status board](https://waffle.io/orbitdb/orbit-db).
+We also have **regular community calls**, which we announce in the issues in [the @orbitdb welcome repository](https://github.com/orbitdb/welcome/issues). Join us!
+
+If you want to code but don't know where to start, check out the issues labelled ["help wanted"](https://github.com/orbitdb/orbit-db/issues?q=is%3Aopen+is%3Aissue+label%3A%22help+wanted%22+sort%3Areactions-%2B1-desc) or the project's [status board](https://waffle.io/orbitdb/orbit-db).
 
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