docs: add ISSUE_TEMPLATE

.github/ISSUE_TEMPLATE.md

@@ -0,0 +1,22 @@
+- [ ] I have searched the [issues](https://github.com/vueComponent/ant-design/issues) of this repository and believe that this is not a duplicate.
+
+### Version
+...
+
+### Environment
+...
+
+### Reproduction link
+[example](https://codesandbox.io/s/2wpk21kzvr)
+
+### Steps to reproduce
+..
+
+### What is expected?
+...
+
+### What is actually happening?
+...
+
+---
+...