.github: update issue and pull request template
@@ -6,7 +6,7 @@ If you haven't already, please read TiKV's [CONTRIBUTING](https://github.com/tik
If you're unsure about anything, just ask; somebody should be along to answer within a day or two.
PR Title Format:
-1. pkg [, pkg2, pkg3]: what's changed
+1. module [, module2, module3]: what's changed
2. *: what's changed
-->
@@ -22,8 +22,6 @@ Proposal: [xxx](url) <!-- REMOVE this line if not applicable -->
What's Changed:
-How it Works:
-
### Related changes
- PR to update `pingcap/docs`/`pingcap/docs-cn`:
