Adds git hook to check files prior to commit

package.json

@@ -50,6 +50,9 @@
     "vue-svg-loader": "^0.16.0",
     "vue-template-compiler": "^2.6.10"
   },
+  "gitHooks": {
+    "pre-commit": "yarn lint"
+  },
   "eslintConfig": {
     "root": true,
     "env": {
@@ -78,4 +81,4 @@
     "> 1%",
     "last 2 versions"
   ]
-}
+}