Update README.md

Author: nad2000

README.md

@@ -1,9 +1,14 @@
 postgresql-contrib-uint
 =======================
 
-branch off from http://pgfoundry.org/projects/uint/
+This implementation is a branch from http://pgfoundry.org/projects/uint/ by [Ryan Bradetich]( http://pgfoundry.org/users/rbrad/).
+It provides unsigned 2 byte and unsigned 4 byte data types to postgres 8.1 and greater.
 
-Changes made so far:
+This implementation of **uint** duplicates https://github.com/maciekgajewski/postgres-uints in a way. But in addition this implementation provides **uint1** as well.
 
-- compatible with 9.x;
+Major changes made so far:
+
+- made compatible with 9.x;
 - made compatible with >= 9.3.x;
+- added support for **CREATE EXTENSION**;
+