Changed INSTALL to point to the tutorial and admin guide.

INSTALL

+Documentation
+=============
+
+Please note that a more detailed installation procedure is described in the
+docs/install.html file. A glossary of terms exists in the docs/admin.html file.
+
+
 Software Requirements
 =====================
 
@@ -43,8 +50,6 @@ This will install the software under /usr/local. You then need to copy
 ganeti.init to /etc/init.d/ganeti and integrate it into your boot sequence
 (``chkconfig``, ``update-rc.d``, etc.).
 
-More details about the installation process are in the docs/install.pdf file.
-
 
 Cluster initialisation
 ======================