Add standard issue template

.github/ISSUE_TEMPLATE/open_an_issue.md

@@ -0,0 +1,20 @@
+---
+name: Open an issuea about this code base
+about: Must be related to this repository. For support ask in https://discuss.ipfs.io
+title: ''
+labels: need/triage
+assignees: ''
+
+---
+(You can delete this text after reading it).
+
+Hello! To ensure this issue is correctly addressed as soon as possible by the
+IPFS team please make sure:
+
+- This bug or feature request belongs to this codebase
+
+- There is a clear description that includes as much information as possible
+and clear scope for the issue to be actionable.
+
+FOR GENERAL DISCUSSION, HELP OR QUESTIONS, please see the options at
+https://ipfs.io/help or head directly to https://discuss.ipfs.io.