Follow same filename as others products into ERP5 Project.

git-svn-id: https://svn.erp5.org/repos/public/erp5/trunk@43071 20353a03-c40f-0410-a6d1-a30d3c3de9de

product/AGProjects/README.txt

+This product is used to redistribute code from AG Projects to be used in our
+Zope products.
+This code was not written by Nexedi, all credit goes to:
+  AG Projects
+  http://www.ag-projects.com/
+
+Refer to each file to know the licence it is distributed under.
+