Removed superfluous "for" in project summary.

index.html

@@ -42,7 +42,7 @@ badges:
 
 
 {% capture billboard_description %}
-Spring Data for [MongoDB](http://www.mongodb.org/) is part of the umbrella Spring Data project which aims to provide a familiar and consistent Spring-based programming model for for new datastores while retaining store-specific features and capabilities. 
+Spring Data for [MongoDB](http://www.mongodb.org/) is part of the umbrella Spring Data project which aims to provide a familiar and consistent Spring-based programming model for new datastores while retaining store-specific features and capabilities. 
 {% endcapture %}
 
 {% capture main_content %}