README.md in gretel-3.0.0.beta6 vs README.md in gretel-3.0.0

@@ -25,10 +25,10 @@
 ## Installation
 
 In your *Gemfile*:
 
 ```ruby
-gem "gretel", "3.0.0.beta5"
+gem "gretel"
 ```
 
 And run:
 
 ```bash