More space on nested lists, required to not overlap when it contains sternal links.

git-svn-id: http://svn.linuxfromscratch.org/LFS/branches/new-xsl@8211 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

lfs.css

@@ -446,8 +446,8 @@ ul {
 }
 
 .itemizedlist li ul li p {
-  margin-top: .2em;
-  margin-bottom: .2em;
+  margin-top: .5em;
+  margin-bottom: .5em;
 }
 
 .itemizedlist li ul li:first-child p:first-child {