*: Rename of imports of raft (as its now a module)

% find -name '*.go' -o -name '*.md' -o -name '*.sh' | xargs sed -i --follow-symlinks 's|etcd/v3/raft|etcd/raft/v3|g'

raft/bootstrap.go

@@ -17,7 +17,7 @@ package raft
 import (
 	"errors"
 
-	pb "go.etcd.io/etcd/v3/raft/raftpb"
+	pb "go.etcd.io/etcd/raft/v3/raftpb"
 )
 
 // Bootstrap initializes the RawNode for first use by appending configuration