Update README.md

Author: julienschmidt

README.md

@@ -25,7 +25,7 @@ A MySQL-Driver for Go's [database/sql](http://golang.org/pkg/database/sql) packa
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 ## Features
-  * Lightweight and [fast](https://github.com/Go-SQL-Driver/SQL-Benchmark golang MySQL-Driver performance)
+  * Lightweight and [fast](https://github.com/Go-SQL-Driver/SQL-Benchmark "golang MySQL-Driver performance")
   * Native Go implementation. No C-bindings, just pure Go
   * No unsafe operations *(e.g. type-conversions)*
   * Connections over TCP/IPv4, TCP/IPv6 or Unix Sockets