command-list.txt: add the common groups block

diff --git a/Documentation/howto/new-command.txt b/Documentation/howto/new-command.txt
index d7de5a3e9ed236c87a62b577ee5978e02d855a2a..6d772bd9279b1564b66ad01c919b97569c9f2c0d 100644 (file)
--- a/Documentation/howto/new-command.txt
+++ b/Documentation/howto/new-command.txt
@@ -95,7 +95,9 @@ your language, document it in the INSTALL file.
 that categorizes commands by type, so they can be listed in appropriate
 subsections in the documentation's summary command list.  Add an entry
 for yours.  To understand the categories, look at git-commands.txt
-in the main directory.
+in the main directory.  If the new command is part of the typical Git
+workflow and you believe it common enough to be mentioned in 'git help',
+map this command to a common group in the column [common].
 
 7. Give the maintainer one paragraph to include in the RelNotes file
 to describe the new feature; a good place to do so is in the cover