Plugin-Gallery: Get better 2nd level headings

amule -> filetransfer (amule)
torrent -> filetransfer (rtorrent)

plugins/processes/proc_mem

@@ -22,7 +22,7 @@ if [ "$1" = "config" ]; then
         echo 'graph_title Memory usage by process'
         echo 'graph_args --base 1024 -l 0'
         echo 'graph_vlabel Bytes'
-        echo 'graph_category processes'
+        echo 'graph_category memory'
         echo 'graph_info This graph shows the memory usage of several processes'
 
         for proc in $processes; do