Fix main README typo.

Brendan Jurd

Author: bmomjian

README

@@ -20,7 +20,7 @@ PHP - http://www.php.net
 Python - http://www.initd.org/
 Ruby - http://ruby.scripting.ca/postgres/
 
-Other language binding are available from a variety of contributing
+Other language bindings are available from a variety of contributing
 parties.
 
 PostgreSQL also has a great number of procedural languages available,