matrix: Better hint the format for Matrix usernames.
@@ -237,7 +237,7 @@ def write_sample_config(target_path: str, zuliprc: Optional[str]) -> None:
OrderedDict(
(
("host", "https://matrix.org"),
- ("username", "username"),
+ ("username", "@username@matrix.org"),
("password", "password"),
("room_id", "#zulip:matrix.org"),
)
