fix: pkg json

Author: zirkelc

package.json

@@ -11,7 +11,7 @@
   },
   "repository": {
     "type": "git",
-    "url": "https://github.com/horike37/serverless-step-functions.git"
+    "url": "git+https://github.com/horike37/serverless-step-functions.git"
   },
   "keywords": [
     "serverless"