yml for ci, not go

.github/workflows/benchmark.go → .github/workflows/benchmark.yml

@@ -15,7 +15,7 @@ jobs:
       with:
         go-version-file: 'go.mod'
     - run: go install golang.org/x/perf/cmd/benchstat@latest
-    // Base for comparison is master branch.
+    # Base for comparison is master branch.
     - name: Checkout code
       uses: actions/checkout@v4.1.7
       with:
@@ -26,7 +26,7 @@ jobs:
       uses: actions/checkout@v4.1.7
     - run: go test -run=none -bench=. --count=7 > /tmp/curr &
 
-    // Wait for both benchmarks to complete before comparing.
+    # Wait for both benchmarks to complete before comparing.
     - run: wait
     - run: RESULT="$(benchstat /tmp/prev /tmp/curr)"
     - uses: actions/github-script@v7