add issue template

.github/ISSUE_TEMPLATE/bug_report.md

@@ -0,0 +1,26 @@
+---
+name: Bug report
+about: Create a report to help us improve
+title: "[BUG] "
+labels: ''
+assignees: ''
+
+---
+
+**Describe the bug**
+<!-- 请大概描述bug, 如果你觉得无法概况, 留空 -->
+<!-- Please provide a brief description of the bug. If you find it difficult to summarize, leave it blank. -->
+
+
+**To Reproduce**
+<!-- 请详细描述你使用 helm chart 的过程, 安装的命令, 最好提供完整的 values 文件 -->
+<!-- Please describe in detail the process of using the Helm chart, the installation command, and preferably provide the complete values file. -->
+
+**Expected behavior**
+A clear and concise description of what you expected to happen.
+
+**Screenshots**
+If applicable, add screenshots to help explain your problem.
+
+**Additional context**
+Add any other context about the problem here.