chore: simpler pull request template
Simpler PR template
-<!--- Provide a general summary of your changes in the Title above -->
+Description
+---
-## Description
-<!--- Describe your changes in detail -->
+Motivation and Context
+---
-## Motivation and Context
-<!--- Why is this change required? What problem does it solve? -->
-<!--- If it fixes an open issue, please link to the issue here. -->
+How Has This Been Tested?
+---
-## How Has This Been Tested?
-<!--- Please describe in detail how you tested your changes. -->
-<!--- Include details of your testing environment, and the tests you ran to -->
-<!--- see how your change affects other areas of the code, etc. -->
-
-## Checklist:
-<!--- Go over all the following points, and put an `x` in all the boxes that apply. -->
-* [ ] I'm merging against the `development` branch.
-* [ ] I have squashed my commits into a single commit.
