Update tools/Performance/GCBenchmark/README.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: jasonstratton

tools/Performance/GCBenchmark/README.md

@@ -87,7 +87,7 @@ The `CLRContainerTraversal` and `ToggleScenario` tests are specifically designed
 
 - Tests dictionary access with FFI objects
 - Tests nested container traversal
-- Tests the True→False→True toggle pattern
+- Tests the True->False->True toggle pattern
 
 After implementing the fix for DYN-8717, these tests should show:
 - No significant performance regression for most scenarios (typically < 5% slowdown)