Update version in README

You guys missed the version update for the gemfile entry.

README.md

@@ -143,7 +143,7 @@ Paperclip is distributed as a gem, which is how it should be used in your app.
 Include the gem in your Gemfile:
 Include the gem in your Gemfile:
 
 
 ```ruby
 ```ruby
-gem "paperclip", "~> 4.2"
+gem "paperclip", "~> 4.3"
 ```
 ```
 
 
 If you're still using Rails 2.3.x, you should do this instead:
 If you're still using Rails 2.3.x, you should do this instead: