docs: add bench result on readme

Author: ahabhgk

README.md

@@ -12,6 +12,29 @@ println!("{:?}", res);
 
 For more details, checkout the [docs.rs](https://docs.rs/sass-embedded)
 
+## Benchmark
+
+[Compile bootstrap with `sass-embedded-host-rust`, `sass-embedded-host-node`, and `dart-sass`](https://github.com/ahabhgk/sass-embedded-host-rust/tree/main/benches/bootstrap)
+
+```bash
+$ cargo bench bootstrap
+Benchmarking bootstrap/Host Rust: Warming up for 3.0000 s
+Warning: Unable to complete 10 samples in 5.0s. You may wish to increase target time to 5.6s.
+bootstrap/Host Rust     time:   [502.81 ms 507.54 ms 512.59 ms]                              
+                        change: [-14.057% -9.4932% -5.7950%] (p = 0.00 < 0.05)
+                        Performance has improved.
+Benchmarking bootstrap/Host Node: Warming up for 3.0000 s
+Warning: Unable to complete 10 samples in 5.0s. You may wish to increase target time to 14.7s.
+bootstrap/Host Node     time:   [1.1295 s 1.2127 s 1.3098 s]                                 
+                        change: [+1.1844% +9.3527% +18.371%] (p = 0.05 > 0.05)
+                        No change in performance detected.
+Benchmarking bootstrap/Dart Sass: Warming up for 3.0000 s
+Warning: Unable to complete 10 samples in 5.0s. You may wish to increase target time to 24.8s.
+bootstrap/Dart Sass     time:   [2.4472 s 2.4728 s 2.4986 s]                                 
+                        change: [-1.1681% +1.3988% +3.8141%] (p = 0.31 > 0.05)
+                        No change in performance detected.
+```
+
 ## Contributing
 
 1. Install the [Protocol Buffer Compiler](https://grpc.io/docs/protoc-installation/).