Merge pull request #11 from webdevian/greenkeeper/gulp-pug-4.0.0

Update gulp-pug to the latest version 🚀

Author: webdevian

package.json

@@ -27,7 +27,7 @@
     "gulp-autoprefixer": "^5.0.0",
     "gulp-concat": "^2.6.1",
     "gulp-load-plugins": "^1.1.0",
-    "gulp-pug": "^3.3.0",
+    "gulp-pug": "^4.0.0",
     "gulp-rename": "^1.2.2",
     "gulp-sass": "^4.0.0",
     "gulp-sass-error": "^1.0.4",