website: now update command is just 'hg pull -u'

Author: techtonik

website/README.txt

@@ -23,7 +23,7 @@ issues.roundup-tracker.org:
       vim ${project_home}/logbuch.txt
  * update the working copy of the SCM roundup source (includes www and wiki)
       cd ${project_home}/src/roundup
-      hg pull -u /home/hg/p/roundup/code
+      hg pull -u
    (The warning about "Not trusting file /home/hg/p/roundup/code/.hg/hgrc
    from untrusted user" can be ignored.)
  * When done working in the shell, you can destroy it early to free resources: