build: Update github Pull-Request template (#401)

* build: Update github Pull-Request template

* Update

Author: yejiayu

.github/PULL_REQUEST_TEMPLATE.md

@@ -1,15 +1,25 @@
 <!--  Thanks for sending a pull request! -->
 <!--  Have I run `make ci`? -->
 
-**What type of PR is this?**
-
 **What this PR does / why we need it**:
 
+
 **Which issue(s) this PR fixes**:
 <!--
 *Automatically closes linked issue when PR is merged.
 Usage: `Fixes #<issue number>`, or `Fixes (paste link of issue)`.
 -->
 Fixes #
 
+
+**Which docs this PR relation**:
+
+Ref #
+
+
+**Which toolchain this PR adaption**:
+
+No Breaking Change
+
+
 **Special notes for your reviewer**: