simple typo fix

templates/common/_webpack.config.js

@@ -1,7 +1,7 @@
 /*
  * Webpack development server configuration
  *
- * This file is set up for serving the webpak-dev-server, which will watch for changes and recompile as required if
+ * This file is set up for serving the webpack-dev-server, which will watch for changes and recompile as required if
  * the subfolder /webpack-dev-server/ is visited. Visiting the root will not automatically reload.
  */
 'use strict';