add some benches with other http libs

README.md

@@ -4,6 +4,21 @@
 
 An HTTP library for Rust.
 
+## Scientific* Benchmarks
+
+[Client bench:](./benches/client.rs)
+
+```
+running 3 tests
+test bench_curl  ... bench:    346762 ns/iter (+/- 16469)
+test bench_http  ... bench:    310861 ns/iter (+/- 123168)
+test bench_hyper ... bench:    284916 ns/iter (+/- 65935)
+
+test result: ok. 0 passed; 0 failed; 0 ignored; 3 measured
+```
+
+_* No science was harmed in this benchmark._
+
 ## License
 
 [MIT](./LICENSE)