bridge_between_zulips: Add explanation of --stream to README.md.
MODIFY
zulip/integrations/bridge_between_zulips/README.md
zulip/integrations/bridge_between_zulips/README.md
@@ -13,3 +13,8 @@ Steps to create an inter-realm bridge:
4. Make sure `bot_1` is subscribed to `stream_1`
5. Enter the stream and the subject into the config file.
6. Do step 1-5 but for `bot_2` and with all occurrences of `_1` replaced with `_2`
+7. Run the script `run-interrealm-bridge`
+
+If the `--stream` flag is added (i.e. `run-interrealm-bridge --stream`), then
+the mirroring granularity becomes stream-wide. Instead of one subject, all
+subjects within the stream are mirrored as-is without translation.

MODIFY
zulip/integrations/bridge_between_zulips/run-interrealm-bridge
zulip/integrations/bridge_between_zulips/run-interrealm-bridge
@@ -63,8 +63,10 @@ if __name__ == "__main__":
Relay each message received at a specified subject in a specified stream from
the first realm to a specified subject in a specified stream in the second realm.
- If the --stream flag is added, then the tunnel granularity becomes
- stream-wide. All subjects are mirrored as-is without translation.
+ If the --stream flag is added, then the mirroring
+ granularity becomes stream-wide. Instead of one subject,
+ all subjects within the stream are mirrored as-is without
+ translation.
"""
sys.path.append(os.path.join(os.path.dirname(__file__), '..'))

bridge_between_zulips: Add explanation of --stream to README.md.