@@ -1,9 +1,9 @@
 <h2>extra</h2>
 
 The <code>extra</code> command is informational, it doesn't do anything to
-a checked-out project, but it tells something about it.
+a checked-out project, but it tells you something about it.
 
 Extra files are files that exist in a checked-out project, but don't belong to
 the repository.
 
 The <code>fossil extra</code> command will get you a list of these files.
@@ -20,5 +20,10 @@
 <code>fossil&nbsp;extra</code> will give you a list.
 
 If you don't think this is all that useful, then you've never had to write
 a shell script that only affects project files and leaves everything
 else alone.  ;)
+
+The <code>extra</code> command is almost, but not quite entirely, the exact
+opposite of the <code>ls</code> command.
+
+See also: [fossil clean], [fossil ls]