yeah V2

Author: nitin42

package.json

@@ -1,6 +1,6 @@
 {
   "name": "react-perf-devtool",
-  "version": "3.0.0-beta11",
+  "version": "3.0.0",
   "description": "A devtool for inspecting the performance of React Components",
   "main": "src/npm/index.js",
   "files": ["src"],
@@ -33,7 +33,9 @@
     "precommit": "lint-staged",
     "format":
       "find src -name '*.js' | xargs ./node_modules/.bin/prettier --write --no-semi --single-quote",
-    "generate": "yarn build && zip -r extension.zip ./extension"
+    "generate":
+      "yarn build && rm -rf ./extension/extension.zip && zip -r ./extension/extension.zip ./extension",
+    "build:extension": "yarn format && yarn test && yarn generate"
   },
   "lint-staged": {
     "*.{js,json}": [