Fix two spaces after end of sentence.

railties/guides/source/getting_started.textile

@@ -536,9 +536,9 @@ command in your terminal:
 $ rails generate scaffold Post name:string title:string content:text
 </shell>
 
-This will create a new database table called posts (plural of Post).  The table
+This will create a new database table called posts (plural of Post). The table
 will have three columns, name (type string), title (type string) and content
-(type text).  It will also hook this new database up to Rails (details below).
+(type text). It will also hook this new database up to Rails (details below).
 
 NOTE. While scaffolding will get you up and running quickly, the code it
 generates is unlikely to be a perfect fit for your application. You'll most