shorter git syntax

Author: hipertracker

package.json

@@ -25,7 +25,7 @@
   "license": "ISC",
   "devDependencies": {
     "6to5": "^1.15.0",
-    "6to5-jest": "git://github.com/hipertracker/6to5-jest",
+    "6to5-jest": "hipertracker/6to5-jest",
     "broccoli": "^0.13.3",
     "broccoli-6to5-transpiler": "^0.1.1",
     "broccoli-cli": "0.0.1",