Docs: Improve documentation on standard communication channels

More information about connection on IRC will hopefully help new
contributors.

CONTRIBUTING.md

@@ -15,6 +15,24 @@ merging pull requests as well as a "lead maintainer" who is responsible for the
 release cycle, overall merging, moderation and appointment of maintainers.
 
 
+Communication Channels
+----------------------
+
+Most communication about Bitcoin Core development happens on IRC, in the
+#bitcoin-core-dev channel on Freenode. The easiest way to participate on IRC is
+with the web client, [webchat.freenode.net](https://webchat.freenode.net/). Chat
+history logs can be found
+on [botbot.me](https://botbot.me/freenode/bitcoin-core-dev/).
+
+Discussion about code base improvements happens in GitHub issues and on pull
+requests.
+
+The developer
+[mailing list](https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev)
+should be used to discuss complicated or controversial changes before working on
+a patch set.
+
+
 Contributor Workflow
 --------------------
 

README.md

@@ -33,12 +33,6 @@ regularly to indicate new official, stable release versions of Bitcoin Core.
 
 The contribution workflow is described in [CONTRIBUTING.md](CONTRIBUTING.md).
 
-The developer [mailing list](https://lists.linuxfoundation.org/mailman/listinfo/bitcoin-dev)
-should be used to discuss complicated or controversial changes before working
-on a patch set.
-
-Developer IRC can be found on Freenode at #bitcoin-core-dev.
-
 Testing
 -------