Create maintenance.md

.github/ISSUE_TEMPLATE/maintenance.md

@@ -0,0 +1,16 @@
+---
+name: Maintenance request
+about: Suggest an idea for this project
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+**Describe the solution you'd like**
+A clear and concise description of what you want to happen.
+
+**Additional context**
+Add any other context or screenshots about the feature request here.
+
+cc @zricethezav