Add tsuru_login rule

README.md

@@ -185,6 +185,7 @@ using the matched rule and runs it. Rules enabled by default are as follows:
 * `switch_layout` – switches command from your local layout to en;
 * `systemctl` – correctly orders parameters of confusing `systemctl`;
 * `test.py` – runs `py.test` instead of `test.py`;
+* `tsuru_login.py` – runs `tsuru login` if not authenticated or session expired;
 * `tmux` – fixes `tmux` commands;
 * `whois` – fixes `whois` command.