Update MCP server test - remove resolved question and add performance profiling question

Co-authored-by: RyanCavanaugh <6685088+RyanCavanaugh@users.noreply.github.com>

Author: Copilot

.github/copilot-questions.md

@@ -2,4 +2,4 @@ Questions I have that I think the developers of this project can help me with:
  * How does control flow analysis represent a circular graph? I checked the documentation server for "cfa" and "control flow"
  * How do I tell if a symbol is in the global scope? I checked the documentation server for topics referencing "symbol" and "global"
  * What is an `EscapedName`, exactly?
- * How do I access the md-fragments MCP server mentioned in the copilot instructions? I searched for MCP server tools and list-topics endpoint but couldn't find the expected md-fragments server
+ * How can I profile TypeScript compilation performance to identify bottlenecks when making changes? I checked the documentation server for "performance", "profiling", and "benchmark" but didn't find guidance on measuring compilation speed impact