📝(react) add do's and don't to Button doc

Based on the work delivered by designers, we simply replicates those
in the storybook documentation in order to centralize everything
related to the Button component.

packages/react/.storybook/main.cjs

@@ -20,6 +20,7 @@ module.exports = {
   },
   staticDirs: [
     'dist',
+    '../src'
   ],
   "features": {
     "storyStoreV7": true