feature request template (#115)

Author: mntlty

.github/ISSUE_TEMPLATE/feature_request.md

@@ -0,0 +1,20 @@
+---
+name: "⭐ Submit a feature request"
+about: Surface a feature or problem that you think should be solved
+title: ''
+labels: enhancement
+assignees: ''
+
+---
+
+### Describe the feature or problem you’d like to solve
+
+A clear and concise description of what the feature or problem is.
+
+### Proposed solution
+
+How will it benefit GitHub MCP Server and its users?
+
+### Additional context
+
+Add any other context like screenshots or mockups are helpful, if applicable.