Add github autoassignment for the install directory.

+ remove the keras auto-assignment since the directory is now empty.

PiperOrigin-RevId: 446481545

Author: MarkDaoust

CODEOWNERS

@@ -4,8 +4,8 @@
 # Default owners for everything in repo.
 *  @MarkDaoust @8bitmp3
 
-# Docs
-/site/en/guide/keras/ @fchollet @MarkDaoust @8bitmp3
+# Install
+/site/en/install/ @mihaimaruseac @haifeng-jin @MarkDaoust @8bitmp3
 
 # Community
 /site/en/community/ @ewilderj @theadactyl @joanafilipa