message: docs: update issue template
diff: -PSST! Want to get faster responses to bug reports and important issues? Help us keep the issue tracker organized by:
  +### Make sure to check the existing issues in this repository
  -- Reporting bugs. Please include all details about the problem and provide a sample app (consider using the [playground](https://play.nativescript.org) for this.
  -- Proposing features and enhancements.
  -- Discussing implementation details.
  +### If there is no issue for your problem, tell us about it
  +Please, ensure your title is less than 63 characters long and starts with a capital
  +letter.
  -Please move all other content to the [forums](https://discourse.nativescript.org/).
  +### Which platform(s) does your issue occur on?
  +- iOS/Android/Both
  +- iOS/Android versions
  +- emulator or device. What type of device?
  +
  +### Please, provide the following version numbers that your issue occurs with:
  +
  +- CLI: (run `tns --version` to fetch it)
  +- Cross-platform modules: (check the 'version' attribute in the
  +`node_modules/tns-core-modules/package.json` file in your project)
  +- Runtime(s): (look for the `"tns-android"` and `"tns-ios"` properties in the `package.json` file of your project)
  +- Plugin(s): (look for the version numbers in the `package.json` file of your
  +project and paste your dependencies and devDependencies here)
  +
  +### Please, tell us how to recreate the issue in as much detail as possible.
  +Describe the steps to reproduce it.
  +
  +### Is there any code involved?
  + - provide a code example to recreate the problem
  + - (EVEN BETTER) consider using the [playground](https://play.nativescript.org) to provide an application where the problem is reproducible. If this is not possible, provide a .zip with application or refer to a repository with application where the problem is reproducible.
  