docs(github): simplify github templates

We've found that half of the engineering team either hates or doesn't even bother using the PR
templates. Refactoring it down to the bare minimum should suffice.

Author: Matthew Fisher

.github/ISSUE_TEMPLATE

@@ -1,49 +1,8 @@
-# Summary of Changes
+If your change requires any additions or changes to the [documentation][docs] or to the [end-to-end test suite][e2e], please submit them as 1 or more pull requests against that repo and refer to them here.
 
-Please explain what this PR changes, and include what unit tests you've written (we hope you wrote tests!)
+refs deis/workflow#1234
+refs deis/workflow-e2e#5678
 
-# Issue(s) that this PR Closes
 
-Please list the issue(s) that this PR closes, similar to the below:
-
-Closes #1234
-Closes #5678
-
-# Associated [End To End Test](https://github.com/deis/workflow-e2e) PR(s)
-
-If your change requires any additions or changes to the [end to end tests](https://github.com/deis/workflow-e2e), please submit them as 1 or more pull requests against that repo and refer to them here.
-
-Ref deis/workflow-e2e#1234
-Ref deis/workflow-e2e#5678
-
-# Associated [Documentation](https://github.com/deis/workflow) PR(s)
-
-If your change requires any additions or changes to the [official documentation](https://github.com/deis/workflow), please submit them as 1 or more pull requests against that repo and refer to them here.
-
-Ref deis/workflow#1234
-Ref deis/workflow#5678
-
-# Associated [Design Document](http://docs.deis.io/en/latest/contributing/design-documents)(s)
-
-If your change was inspired by 1 or more design document(s), please provide a list of links to them here.
-
-# Testing Instructions
-
-Please provide a detailed list for how to test the changes in this PR.
-
-1. Create a Deis Cluster
-2. Register an app
-3. Your Steps Here...
-
-Also, please provide a description of the desired result after the tester completes the above steps.
-
-1. The app called "abcd" should be deployed
-2. `kubectl get pod --namespace=abcd` should show 2 pods running
-3. etc...
-
-# Pull Request Hygiene TODOs
-
-Please make sure the below checklist is complete.
-
-- [ ] Your pull request is concise and to the point (make another PR for refactoring nearby code)
-- [ ] Your commits follow the [commit style guidelines](http://docs.deis.io/en/latest/contributing/standards/#commit-style-guide)
+[docs]: https://github.com/deis/workflow
+[e2e]: https://github.com/deis/workflow-e2e