add webber script

package.json

@@ -4,8 +4,11 @@
   "description": "A curated collection of useful Python snippets that you can understand in 30 seconds or less.",
   "main": "config.js",
   "scripts": {
+    "builder": "node ./scripts/build.js",
     "extractor": "node ./scripts/extract.js",
-    "builder": "node ./scripts/build.js"
+    "webber": "gatsby build",
+    "webber:dev": "gatsby develop",
+    "webber:serve": "gatsby serve"
   },
   "repository": {
     "type": "git",
@@ -66,4 +69,4 @@
     "rollup-plugin-babel": "^4.0.3",
     "rollup-plugin-babel-minify": "^4.0.0"
   }
-}
+}