Add command

Author: mrmrs

package.json

@@ -10,8 +10,9 @@
     "home:watch": "watch 'node build-home.js' src/templates/",
     "build:watch": "watch 'node build.js' src/templates/",
     "doc": "bash script.sh",
-    "doc:watch": "watch 'npm run doc' src/templates/",
+    "doc:watch": "watch 'npm run doc' src/templates/docs",
     "doc:lib": "watch 'npm run doc' lib",
+    "doc:images": "watch 'node src/modules/images.js' src/templates/docs/images",
     "build:all": "node build.js && bash script.sh"
   },
   "repository": "tachyons-css/tachyons-css.github.io",