Remove note about Go1.6 not being supported

Recommend Go1.6.2
Note that Go1.5 is still supported

License: MIT
Signed-off-by: Jakub Sztandera <kubuxu@protonmail.ch>

README.md

@@ -57,7 +57,8 @@ From there:
 
 #### Install Go
 
-First, you'll need Go. If you don't have it: [Download Go 1.5.2+](https://golang.org/dl/). **Go 1.6 is not yet supported.**
+First, you'll need Go. If you don't have it: [Download Go 1.6.2+](https://golang.org/dl/). _Go 1.5 is still being supported._
+
 
 You'll need to add Go's bin directories to your `$PATH` environment variable e.g., by adding these lines to your `/etc/profile` (for a system-wide installation) or `$HOME/.profile`: