Go 1.8 is now required

README.md

@@ -20,7 +20,7 @@ Client Setup
 
 ### Build
 
-* Go 1.5 (or higher) is required.
+* Go 1.8 (or higher) is required.
 * This project builds and runs on recent versions of Windows, Linux, and Mac OS X.
 * Note that the `psiphon` package is imported using the absolute path `github.com/Psiphon-Labs/psiphon-tunnel-core/psiphon`; without further local configuration, `go` will use this version of the code and not the local copy in the repository.
 * In this repository, run `go build` in `ConsoleClient` to make the `ConsoleClient` binary, a console Psiphon client application.