http.go: Added missing word from NewHTTPPool docs
diff --git a/http.go b/http.go
index 14eb345..f37467a 100644
--- a/http.go
+++ b/http.go
@@ -74,7 +74,7 @@
// NewHTTPPool initializes an HTTP pool of peers, and registers itself as a PeerPicker.
// For convenience, it also registers itself as an http.Handler with http.DefaultServeMux.
-// The self argument be a valid base URL that points to the current server,
+// The self argument should be a valid base URL that points to the current server,
// for example "http://example.net:8000".
func NewHTTPPool(self string) *HTTPPool {
p := NewHTTPPoolOpts(self, nil)