- fix documentation link

- fix path to INSTALL.rst

README.txt

@@ -6,16 +6,16 @@ Zope2 is an open-source web application server.
 This document provides some general information about Zope2 and provides
 links to other documents.
 
-Installation information can be found in ``doc/INSTALL.txt``.  Other
+Installation information can be found in ``doc/INSTALL.rst``.  Other
 documentation is also in the "doc" directory and in the zope.org
-documentation section at http://www.zope.org/Documentation/.
+documentation section at http://docs.zope.org/ .
 
 General Zope information is available at http://www.zope.org/
 
 Installation
 ------------
 
-Follow the instructions in ``doc/INSTALL.txt`` to install Zope.
+Follow the instructions in ``doc/INSTALL.rst`` to install Zope.
 
 License
 -------