integrations/codebase: Use change-zulip-config-file macro.

templates/zerver/integrations/codebase.md

@@ -6,18 +6,15 @@ After creating these streams (we suggest naming them `codebase commits` and
 {!download-python-bindings.md!}
 
 You will need your Codebase API Username. You can find it in the settings page
-of your account, under `API Credentials`.
+of your account, under **API Credentials**.
 
-Edit the Codebase and Zulip credentials in `integrations/codebase/zulip_codebase_config.py`
-using your favorite editor:
+{!change-zulip-config-file.md!}
+
+Also, edit the following Codebase credentials in `zulip_codebase_config.py`:
 
 ```
 CODEBASE_API_USERNAME = "zulip-inc/leo-franchi-15"
 CODEBASE_API_KEY = 0123456789abcdef0123456789abcdef
-
-ZULIP_USER = "codebase-bot@example.com"
-ZULIP_API_KEY = "0123456789abcdef0123456789abcdef"
-{% if api_site_required %}ZULIP_SITE = "{{ external_api_uri_subdomain }}"{% endif %}
 ```
 
 Before your first run of the script, you may optionally choose to configure it
@@ -27,7 +24,6 @@ to mirror some number of hours of prior Codebase activity:
 CODEBASE_INITIAL_HISTORY_HOURS = 10
 ```
 
-
 Now, simply run the `api/integrations/codebase/zulip_codebase_mirror` script.
 If needed, this script may be restarted, and it will automatically resume from
 when it was last running.
@@ -35,7 +31,6 @@ when it was last running.
 Whenever you create a new project, commit, issue, deployment, or more, you’ll
 get notifications in your selected streams with the associated information.
 
-{! congrats.md !}
-
+{!congrats.md!}
 
 ![](/static/images/integrations/codebase/001.png)