Add branch-alias to confog

Author: Andrew Zhdanovskih

composer.json

@@ -39,6 +39,11 @@
     "symfony/phpunit-bridge": "^4.1|^5.0",
     "symfony/var-dumper": "^4.1|^5.0"
   },
+  "extra": {
+    "branch-alias": {
+      "dev-master": "develop"
+    }
+  },
   "config": {
     "sort-packages": true
   },