Add template for abra bug report

.gitea/ISSUE_TEMPLATE.md

@@ -0,0 +1,20 @@
+---
+name: "🐛 Abra bug report"
+about: "For raising bugs against abra, our command-line tool"
+title: "[abra]: "
+labels:
+  - bug
+  - abra
+---
+
+## Describe the current behavior
+
+## Steps to reproduce
+
+## Describe the expected behavior
+
+## Additional information
+
+<!-- run "abra version" on the command-line -->
+
+- version: