Update CONTRIBUTING.md

Author: MoOx

CONTRIBUTING.md

@@ -23,7 +23,7 @@ write bug reports or feature requests with detail, background, and sample code
 if necessary.
 
 Just try to
-[open a new issue](https://github.com/reason-react-native/__template__/issues/new)
+[open a new issue](https://github.com/reason-react-native/__template__/issues/new/choose)
 & follow the instructions that should be prefilled for
 [bug](.github/ISSUE_TEMPLATE/bug.md) or
 [feature request](.github/ISSUE_TEMPLATE/feature.md).