added bin commands

Author: flexxnn

package.json

@@ -3,6 +3,10 @@
   "version": "1.0.3",
   "description": "Sequelize migrations generator && runner",
   "main": "index.js",
+  "bin": {
+    "runmigration": "./bin/runmigration.js",
+    "makemigration": "./bin/makemigration.js"
+  },
   "scripts": {
     "test": "echo \"Error: no test specified\" && exit 1"
   },