minor spelling and grammar fixes

frappe/docs/index.html

@@ -32,8 +32,8 @@
 Javascript, HTML/CSS with MySQL as the backend. It was built for ERPNext
 but is pretty generic and can be used to build database driven apps.</p>
 
-<p>The key differece in Frappe compared to other frameworks is that Frappe
-is that meta-data is also treated as data and is used to build front-ends
+<p>The key difference in Frappe compared to other frameworks is that in Frappe,
+metadata is also treated as data and it can be used to build frontend
 very easily. Frappe comes with a full blown admin UI called the <strong>Desk</strong>
 that handles forms, navigation, lists, menus, permissions, file attachment
 and much more out of the box.</p>