Add a note not to free the result from git_remote_ls
diff --git a/include/git2/remote.h b/include/git2/remote.h
index 87f84f8..43bbe9e 100644
--- a/include/git2/remote.h
+++ b/include/git2/remote.h
@@ -100,7 +100,8 @@ GIT_EXTERN(int) git_remote_connect(struct git_remote *remote, int direction);
/**
* Get a list of refs at the remote
*
- * The remote (or more exactly its transport) must be connected.
+ * The remote (or more exactly its transport) must be connected. The
+ * memory belongs to the remote.
*
* @param refs where to store the refs
* @param remote the remote