Release 3.0 changes

Author: caciobanu

README.md

@@ -14,7 +14,7 @@ It follows the structure and features provided by [Doctrine Migrations](https://
 
 ## PHP Version Support
 
-If you require php 5.6 support use version `^1.0`. Version `^2.0` requires at least php 7.1. The `1.x` releases will only receive bug fixes.
+If you require php 5.6 support use version `^1.0`. Version `^3.0` requires at least php 7.1. The `1.x` releases will only receive bug fixes.
 
 ## Symfony Bundle
 
@@ -31,7 +31,7 @@ To install with composer:
 composer require "doesntmattr/mongodb-migrations=^1.0"
 
 # For php 7.1
-composer require "doesntmattr/mongodb-migrations=^2.0"
+composer require "doesntmattr/mongodb-migrations=^3.0"
 ```
 
 ## Features

composer.json

@@ -39,7 +39,7 @@
     },
     "extra": {
         "branch-alias": {
-            "dev-master": "2.0.x-dev"
+            "dev-master": "3.0.x-dev"
         }
     },
     "archive": {