Update new issue link to include DevTools label

Author: bvaughn

packages/react-devtools/README.md

@@ -107,7 +107,7 @@ Or you could develop with a local HTTP server [like `serve`](https://www.npmjs.c
 
 **If your app is inside an iframe, a Chrome extension, React Native, or in another unusual environment**, try [the standalone version instead](https://github.com/facebook/react/tree/master/packages/react-devtools). Chrome apps are currently not inspectable.
 
-**If you still have issues** please [report them](https://github.com/facebook/react/issues/new). Don't forget to specify your OS, browser version, extension version, and the exact instructions to reproduce the issue with a screenshot.
+**If you still have issues** please [report them](https://github.com/facebook/react/issues/new?labels=Component:%20Developer%20Tools). Don't forget to specify your OS, browser version, extension version, and the exact instructions to reproduce the issue with a screenshot.
 
 ## Development