Update installation instructions

README.md

@@ -12,27 +12,9 @@ If you are looking for a bundle for Pomm 1.x then look up for `pomm/pomm-bundle`
 
 ## Installation
 
-As Pomm2 is not considered as stable, the install process depends on your `composer.json` `minimum-stability` value. 
-
-### "minimum-stability": "stable"
-
-Require all Pomm2 depencencies manually :
-
-    "pomm-project/pomm-bundle": "2.0.*@dev",
-    "pomm-project/pomm-symfony-bridge": "2.0.*@dev",
-    "pomm-project/foundation": "2.0.*@dev",
-    "pomm-project/model-manager": "2.0.*@dev",
-    "pomm-project/cli": "2.0.*@dev"
-
-in your `composer.json` file and run the `update` command
-
-### "minimum-stability": "dev"
-
-Simply require 
-
-    "pomm-project/pomm-bundle": "2.0.*@dev",
-
-in your `composer.json` file and run the `update` command.
+```
+composer require pomm-project/pomm-bundle
+```
 
 ## Setup