Update feature_request.md

Add prompt to feature request template for tool proposals to include example workflows/prompts

Author: D1M1TR10S

.github/ISSUE_TEMPLATE/feature_request.md

@@ -15,6 +15,10 @@ A clear and concise description of what the feature or problem is.
 
 How will it benefit GitHub MCP Server and its users?
 
+### Example prompts or workflows (for tools/toolsets only)
+
+If it's a new tool or improvement, share 3–5 example prompts or workflows it would enable. Just enough detail to show the value. Clear, valuable use cases are more likely to get approved.
+
 ### Additional context
 
-Add any other context like screenshots or mockups are helpful, if applicable.
+Add any other context like screenshots or mockups are helpful, if applicable.