g.cairocomp: manual cosmetics

git-svn-id: https://svn.osgeo.org/grass/grass/trunk@54646 15284696-431f-4ddb-bdfa-cd5b030d7da7

general/g.cairocomp/g.cairocomp.html

@@ -1,5 +1,8 @@
 <h2>DESCRIPTION</h2>
 
+<em>g.cairocomp</em> isn't meant for end users.
+
+<p>
 <em>g.cairocomp</em> is similar
 to <em><a href="g.pnmcomp.html">g.pnmcomp</a></em>, except that it
 works with X Pixmaps instead of PNM files.