Updated package version in composer example

shabbyrobe · shabbyrobe · commit 4c476fdf18a1 · 2012-08-09T11:36:38.000+10:00
diff --git a/README.md b/README.md
@@ -79,7 +79,7 @@ Installation
 ```javascript
 {
     "require": {
-        "docopt/docopt": "dev-master"
+        "docopt/docopt": "0.4.2"
     }
 }
 ```
