chore: bug_fix pull request template

.github/PULL_REQUEST_TEMPLATE/bug_fix.md

@@ -0,0 +1,25 @@
+---
+name: Bug fix
+about: A template for submitting a bug fix pull request.
+
+---
+
+# Description (Bug描述）
+
+## Steps to reproduce (复现步骤)   
+Clear steps to reproduce the bug.
+
+## Expected behavior (预期行为)  
+Describe what the expected behavior should be when the code is executed without the bug.
+
+## Actual behavior (实际行为)
+Describe what actually happens when the code is executed with the bug.   
+
+## Related issues (相关issue)
+Include any related issues or previous bug reports related to this bug.
+
+# Reason (原因）
+Explain what caused the bug to occur.   
+
+# Solution (解决方案)
+Describe solution to the bug clearly and consciously.