improve README.txt

Author: scor

README.txt

@@ -5,7 +5,7 @@ See announcement
 http://openspring.net/blog/2010/05/26/the-open-graph-protocol-and-drupal
 
 Install this module on your Drupal 7 site and select the og:type you want to
-be associated with your each content type in Structure >> Content types >> Edit.
+be associated with each content type in Structure >> Content types >> Edit.
 Create your fields using the same og property you want them to be mapped to,
 e.g. 'description', 'image', 'latitude', 'longitude', 'locality', 'email', etc.