docs/configuring-playbook-mautrix-bridges.md: fix periods

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

docs/configuring-playbook-mautrix-bridges.md

@@ -122,7 +122,7 @@ If you have issues with a service, and are requesting support, the higher levels
 
 You then need to start a chat with `@SERVICENAMEbot:example.com` (where `example.com` is your base domain, not the `matrix.` domain).
 
-Send `login ` to the bridge bot to get started You can learn more here about authentication from the bridge's official documentation on Authentication https://docs.mau.fi/bridges/python/SERVICENAME/authentication.html  .
+Send `login` to the bridge bot to get started. You can learn more here about authentication from the bridge's official documentation on Authentication: https://docs.mau.fi/bridges/python/SERVICENAME/authentication.html
 
 If you run into trouble, check the [Troubleshooting](#troubleshooting) section below.