update README

README.md

@@ -14,6 +14,7 @@ quic-go is an implementation of the [QUIC](https://en.wikipedia.org/wiki/QUIC) p
 Done:
 
 - Basic protocol with support for QUIC version 34-36
+- QUIC client
 - HTTP/2 support
 - Crypto (RSA / ECDSA certificates, Curve25519 for key exchange, AES-GCM or Chacha20-Poly1305 as stream cipher)
 - Loss detection and retransmission (currently fast retransmission & RTO)
@@ -26,7 +27,6 @@ Major TODOs:
 - Performance
 - Better packet loss detection
 - Connection migration
-- QUIC client
 
 ## Guides
 
@@ -38,20 +38,26 @@ Running tests:
 
     go test ./...
 
-Running the example server:
+### Running the example server
 
     go run example/main.go -www /var/www/
 
 Using the `quic_client` from chromium:
 
-    quic_client --quic-version=32 --host=127.0.0.1 --port=6121 --v=1 https://quic.clemente.io
+    quic_client --host=127.0.0.1 --port=6121 --v=1 https://quic.clemente.io
 
 Using Chrome:
 
     /Applications/Google\ Chrome.app/Contents/MacOS/Google\ Chrome --user-data-dir=/tmp/chrome --no-proxy-server --enable-quic --origin-to-force-quic-on=quic.clemente.io:443 --host-resolver-rules='MAP quic.clemente.io:443 127.0.0.1:6121' https://quic.clemente.io
 
+### Using the example client
+
+    go run example/client/main.go https://quic.clemente.io
+
 ## Usage
 
+### As a server
+
 See the [example server](example/main.go) or try out [Caddy](https://github.com/mholt/caddy) (from version 0.9, [instructions here](https://github.com/mholt/caddy/wiki/QUIC)). Starting a QUIC server is very similar to the standard lib http in go:
 
 ```go
@@ -59,6 +65,16 @@ http.Handle("/", http.FileServer(http.Dir(wwwDir)))
 h2quic.ListenAndServeQUIC("localhost:4242", "/path/to/cert/chain.pem", "/path/to/privkey.pem", nil)
 ```
 
+### As a client
+
+See the [example client](example/client/main.go). Use a `QuicRoundTripper` as a `Transport` in a `http.Client`.
+
+```go
+http.Client{
+  Transport: &h2quic.QuicRoundTripper{},
+}
+```
+
 ## Building on Windows
 
 Due to the low Windows timer resolution (see [StackOverflow question](http://stackoverflow.com/questions/37706834/high-resolution-timers-millisecond-precision-in-go-on-windows)) available with Go 1.6.x, some optimizations might not work when compiled with this version of the compiler. Please use Go 1.7 on Windows.