Update PR template
[#170331670](https://www.pivotaltracker.com/story/show/170331670)
Thank you for submitting a pull request to the diego-release repository. We appreciate the contribution. To help us with getting better context for the pull request please follow these guidelines:
-1. Check the [Contributing document](https://github.com/cloudfoundry/diego-release/blob/develop/CONTRIBUTING.md) on how to sign the CLA and run tests in diego-release.
-1. Make sure a pull request is done against the `develop` branch.
-1. If introducing a significant change please [open an issue](https://github.com/cloudfoundry/diego-release/issues/new) first to discuss with the team potential solution and provide supporting documents if necessary.
+## Please make sure to complete the following steps
+
+* [ ] Check the [Contributing document](https://github.com/cloudfoundry/diego-release/blob/develop/CONTRIBUTING.md) on how to sign the CLA and run tests in diego-release.
+* [ ] Make sure a pull request is done against the `develop` branch.
+* [ ] Please [open an issue](https://github.com/cloudfoundry/diego-release/issues/new) to request review and response to your pull request.
+
+## Please provide the following information when submitting pull request:
+
+### What is this change about?
+
+> _Please describe._
+
+### What problem it is trying to solve?
+
+> _Please describe._
+
+### What is the impact if the change is not made?
+
+> _Please describe._
+
+### How should this change be described in diego-release release notes?
+
+> _Something brief that conveys the change. See [previous release notes](https://github.com/cloudfoundry/diego-release/releases) for examples._
+
+### Please provide any contextual information.
+
+> _Include any links to other PRs, stories, slack discussions, etc._
+
+### Tag your pair, your PM, and/or team!
+
+> _It's helpful to tag someone on your team or your team alias in case we need to follow up later._
Thank you!
