Fleshed out README a bit.

README

-See doc/README.txt
+Welcome to Zope beta 1 source release.
+
+  This document provides some general information about the Zope
+  source release and provides links to other documents.
+
+  Installation information can be found in doc/INSTALL.txt.
+
+  Zope information is available at http://www.zope.org
+
+  Report problems with this release on the Zope mailing list
+  (zope@zope.org) To subscribe to the list send mail to
+  zope-request@zope.org with "subscribe" in the subject line.
+
+Introduction:
+
+  The source release is intended for tinkerers, those who want
+  to use Zope components separately, Bobo hackers, and people
+  who aren't afraid of programming.
+
+  If you just want to use Zope easily and aren't a programmer
+  the binary release will probably suit you better.
+
+Installing Zope:
+
+  Follow the instructions in INSTALL.txt to install Zope. You
+  may wish to run the installer even if you only plan on using
+  selected Zope components since the install script compiles
+  Python extensions for you that you may want, like cDocumentTemplate.
+
+Notes:
+
+  * Zope requires Python 1.5.
+  * Lots more documentation is coming.
+  * Don't forget to check the Zope web site and mailing list.
+  * Read the source, have fun!
+