contributing: mention command-line completion

diff --git a/contributing.mdwn b/contributing.mdwn
index 11d711bd061abf72aedca1281bd7ad64957bc7ee..3729a766cbbc9948401b3c149a15d8c6131227aa 100644 (file)
--- a/contributing.mdwn
+++ b/contributing.mdwn
@@ -116,6 +116,14 @@ update the Emacs documentation.
 If you make user visible changes, you should add an entry to the
 [`NEWS`](http://git.notmuchmail.org/git/notmuch/blob/HEAD:/NEWS) file.
 
+## Update command-line completion
+
+If you modify or add new features to the Notmuch command-line tools, it
+would be a nice bonus if you also updated the Notmuch command-line
+completion scripts under the `completion` directory of the Notmuch
+source. Not required, but nice to have, and definitely can be done
+afterwards.
+
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