feat: add README

README.md

@@ -0,0 +1,15 @@
+tls-forward-proxy
+=================
+
+A most basic forward proxy using [Tokio](https://tokio.rs/) [TcpStreams](https://docs.rs/tokio/1.3.0/tokio/net/struct.TcpStream.html).
+
+Sample usage:
+```
+$ cargo build && cargo run
+Listening on 127.0.0.1:8080
+```
+
+Send requests to your destination through this proxy:
+```
+curl --cacert /path/to/cert.pem https://test.dev:5000 -x http://proxy.dev:8080 --proxytunnel
+```