no-release: add Pull Request Template (#153)

.github/PULL_REQUEST_TEMPLATE/pull_request_template.md

@@ -0,0 +1,28 @@
+<!--
+Thank you for contributing to this project! You must fill out the information
+below before we can review this pull request. By explaining why you're making a
+change (or linking to a pull request) and what changes you've made, we can
+triage your pull request more quickly.
+
+See our [CONTRIBUTING.md](/CONTRIBUTING.md) for information how to contribute.
+
+Thanks again!
+-->
+
+### Why?
+
+- Closes [issue link]
+
+<!--
+- If there's an existing issue for your change, please link to it.
+- If there's _not_ an existing issue, please open one first to make it more likely that this update will be accepted: https://github.com/metaplex-foundation/js/issues/new/choose. -->
+
+### What's being changed?
+
+<!-- Share artifacts of the changes like code snippets, GIFs or screenshots - whatever shares the most context. -->
+
+### Check off the following:
+
+- [ ] I have run `yarn fix` on my code before committing and opening this Pull Request
+- [ ] I made sure there are passing tests which cover this change
+- [ ] I ran `yarn test:all-local-mpl` locally and tests passed before opening this Pull Request