minor doc updates

- README: re not needing root access
  - doc/3: "empty clone error" vis-a-vis git 1.6.4.3

README.mkd

@@ -28,6 +28,7 @@ a typical $DAYJOB setting, there are some issues:
     and be done
   * often, "python-setuptools" isn't installed (and on a Solaris9 I was trying
     to help remotely, we never did manage to install it eventually)
+  * or you don't have root access, or the ability to add users
   * the most requested feature (see "what's new?") had to be written anyway
 
 ### what's gone

doc/3-faq-tips-etc.mkd

@@ -33,6 +33,7 @@ In this document:
   * when you clone an empty repo, git seems to complain about the remote
     hanging up or something.  I have no idea what that is, but it doesn't seem
     to hurt anything.  This happens even in normal git, not just gitolite.
+    [Update 2009-09-14; this has been fixed in git 1.6.4.3]
 
   * once in a while, if you're feeling particularly BOFH-ish, take a look at
     `$GL_ADMINDIR/log` :-)