Comment and/or doc changes.

Author: ygoldfeld

CONTRIBUTING.md

@@ -12,7 +12,7 @@ repos, each with its own Issues list.  As of this writing the repos are `ipc` (t
 repos together constituting the bulk of Flow-IPC), and `flow`.  When in doubt as to where to file a new
 issue, please default to the `ipc` repo's Issues list.
 
-You may also reach the maintainers - and the rest of the community - via the Discussions board.
+You may also reach the maintainers -- and the rest of the community -- via the Discussions board.
 Navigate to the [Discussions tab](https://github.com/orgs/Flow-IPC/discussions) off the Flow-IPC organization
 page or `ipc` repo page.