Merge pull request #101 from libp2p/remove-context-readme

remove the context from the libp2p constructor in README

README.md

@@ -58,16 +58,12 @@ To explicitly enable the TCP transport while constructing a host, use the
 ``` go
 
 import (
-    "context"
-
     libp2p "github.com/libp2p/go-libp2p"
     tcp "github.com/libp2p/go-tcp-transport"
 )
 
-ctx := context.Background()
-
 // TCP only:
-h, err := libp2p.New(ctx,
+h, err := libp2p.New(
     libp2p.Transport(tcp.NewTCPTransport)
 )
 ```
@@ -77,7 +73,7 @@ transport. To add multiple tranports, use `ChainOptions`:
 
 ``` go
 // TCP and QUIC:
-h, err := libp2p.New(ctx,
+h, err := libp2p.New(
     libp2p.Transport(tcp.NewTCPTransport),
     libp2p.Transport(quic.NewTransport), // see https://github.com/libp2p/go-libp2p-quic-transport
 )