Document what Signed-off-by means

We get submissions with this from time to time, so document what signed-off-by means. It's not used extensively in FreeBSD at this time.
2021-03-17 00:25:24 -06:00 · 2021-03-17 00:25:24 -06:00 · d24ea0f845
commit d24ea0f845
parent abff932fe8
1 changed files with 4 additions and 0 deletions
--- a/documentation/content/en/articles/committers-guide/_index.adoc
+++ b/documentation/content/en/articles/committers-guide/_index.adoc
@ -2446,6 +2446,10 @@ number, for ports) and the title line of a commit that is fixed by this change.

 |`Differential Revision:`
 |The full URL of the Phabricator review. This line __must be the last line__. For example: `https://reviews.freebsd.org/D1708`.
+
+|`Signed-off-by:`
+|ID certifies compliance with https://developercertificate.org/
+
 |===

 .Commit Log for a Commit Based on a PR