raft: fix link typo
@@ -23,7 +23,7 @@ For more details on Raft, see "In Search of an Understandable Consensus Algorith
A simple example application, _raftexample_, is also available to help illustrate
how to use this package in practice:
-https://go.etcd.io/etcd/tree/master/contrib/raftexample
+https://github.com/etcd-io/etcd/tree/master/contrib/raftexample
Usage
