Fix a typo (#117)

recommenced > recommended

README.md

@@ -267,7 +267,7 @@ Using Nginx as a proxy
 ======================
 
 For such purposes as load balancing, terminating TLS early,
- or supporting SSL versions not supported by Go (highly not recommenced if you
+ or supporting SSL versions not supported by Go (highly not recommended if you
  want to use older SSL versions), 
  it is possible to [use NGINX as a proxy](https://github.com/flashmob/go-guerrilla/wiki/Using-Nginx-as-a-proxy).