CLAUDE.md: add git user/email instruction for sob tags

Ensure Claude Code uses proper Signed-off-by tag Name and Email from
Git.

Generated-by: Claude AI
Signed-off-by: Daniel Gomez <[email protected]>

Author: dkruces

CLAUDE.md

@@ -417,7 +417,9 @@ any spell fixes unless asked explicitly to do that.
 ## Use the Signed-off-by tag
 
 We want to use the Signed-off-by tag which embodies the application of the
-Developer Certificate or Origin.
+Developer Certificate or Origin. Use the git configured user name and email
+for the Signed-off-by tag (check with `git config user.name` and
+`git config user.email`).
 
 ## Use Generated-by: Claude AI