fix html linting

package.json

@@ -25,8 +25,8 @@
     "aframe-input-mapping-component": "https://github.com/johnshaughnessy/aframe-input-mapping-component#feature/map-to-array",
     "aframe-physics-extras": "https://github.com/infinitelee/aframe-physics-extras#fix/physics-collider-crash",
     "aframe-physics-system": "https://github.com/infinitelee/aframe-physics-system#feature/shape-component",
-    "aframe-teleport-controls": "^0.3.1",
     "aframe-rounded": "^1.0.3",
+    "aframe-teleport-controls": "^0.3.1",
     "aframe-xr": "github:brianpeiris/aframe-xr#3162aed",
     "classnames": "^2.2.5",
     "detect-browser": "^2.1.0",
@@ -75,6 +75,7 @@
     "rimraf": "^2.6.2",
     "sass-loader": "^6.0.7",
     "selfsigned": "^1.10.2",
+    "shelljs": "^0.8.1",
     "style-loader": "^0.20.2",
     "webpack": "^4.0.1",
     "webpack-cli": "^2.0.9",