Doc: CG: Add guideline for use of 'CSS' prefix in commit messages

diff --git a/Documentation/contributor/source-code.itexi b/Documentation/contributor/source-code.itexi
index bfebb9a0c8cf0850a58b62d88d1528af5f0b9eaf..ac8ecb6ee40827b3d5f137f1baeb712ab7b52870 100644 (file)
--- a/Documentation/contributor/source-code.itexi
+++ b/Documentation/contributor/source-code.itexi
@@ -1251,6 +1251,11 @@ Web: and Web-@var{**}:  Commits that affect the
 website should use @qq{Web:@tie{}} for English, and
 @qq{Web-@var{**}:@tie{}} for other languages.
 
+@item
+CSS: Commits that change CSS files should use @qq{Web:@tie{}CSS:@tie{}}
+or @qq{Doc:@tie{}CSS:@tie{}} depending on whether they affect the
+website or the documentation/manuals.
+
 @item
 Changes to a single file are often prefixed with the name of the file
 involved.