Update issue templates

Author: XiaoPangxie732

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,26 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: "[BR]"
+labels: bug
+assignees: ''
+
+---
+
+**Describe the bug**
+A clear and concise description of what the bug is.
+
+**To Reproduce**
+Steps to reproduce the behavior:
+1. Run method '...'
+2. See error
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add error screenshots to help explain your problem.
+
+**Desktop (please complete the following information):**
+ - OS: [e.g. Windows 10]
+ - Java Version [e.g. 1.8_202]