fix: update benchmark result link

Author: shenxianpeng

docs/benchmark.md

@@ -12,4 +12,14 @@ python3 testing/benchmark_hooks.py
 
 ## Results
 
-The results of the benchmarking process will be saved to [this file](testing/benchmark_results.txt).
+```bash
+# Updated on 2025-09-02
+Benchmark Results:
+
+Hook                 | Avg (s)          | Std (s)          | Min (s)          | Max (s)          | Runs
+---------------------+------------------+------------------+------------------+------------------+-----------------
+mirrors-clang-format | 0.116            | 0.003            | 0.113            | 0.118            | 5
+cpp-linter-hooks     | 0.114            | 0.003            | 0.109            | 0.117            | 5
+
+Results saved to testing/benchmark_results.txt
+```