Merge pull request #3 from alexpeattie/patch-1

Minor changes to spelling/grammar, Thanks @alexpeattie

articles/getting-the-most-out-of-bundler-groups.md

@@ -8,17 +8,17 @@ Gemfile.
 them. Groups help you require the gems only when they are needed.
 
 This is especially true if you use Ruby 1.9.2. In this version of Ruby, the
-`require` statement can get very slow. Since the number of gems inside a
-project can get rather large. Loading only the gems that are needed can improve
-Rails boot time immensely.
+`require` statement can get very slow. The number of gems inside a
+project can get rather large, so loading only the gems that are needed can improve
+Rails' boot time immensely.
 
 **Safety:** Some gems provide functionality that you don't want to enable in
 certain cases.  Take webmock, for instance. This handy gem blocks all outgoing
 network traffic inside your application. Very handy for testing purposes, but
 not in production!
 
 
-**Clearity:** The group name can act as documentation. If you ever wonder what
+**Clarity:** The group name can act as documentation. If you ever wonder what
 a gem does and where it is used inside your application, a group can tell you a
 lot.