Update docs/configuring-playbook-prometheus-grafana.md: fix the variables name

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

docs/configuring-playbook-prometheus-grafana.md

@@ -158,8 +158,8 @@ Name | Description
 `matrix_prometheus_nginxlog_exporter_metrics_proxying_enabled`|Set this to `true` to expose the [nginx Log exporter](#enable-metrics-and-graphs-for-nginx-logs-optional) metrics on `https://matrix.example.com/metrics/nginxlog`. To password-protect the metrics, see `matrix_metrics_exposure_http_basic_auth_users` above.
 `matrix_sliding_sync_metrics_enabled`|Set this to `true` to make [Sliding Sync](configuring-playbook-sliding-sync-proxy.md) expose metrics (locally, on the container network).
 `matrix_sliding_sync_metrics_proxying_enabled`|Set this to `true` to expose the [Sliding Sync](configuring-playbook-sliding-sync-proxy.md) metrics on `https://matrix.example.com/metrics/sliding-sync`. To password-protect the metrics, see `matrix_metrics_exposure_http_basic_auth_users` above.
-`matrix_bridge_hookshot_metrics_enabled`|Set this to `true` to make [Hookshot](configuring-playbook-bridge-hookshot.md) expose metrics (locally, on the container network).
-`matrix_bridge_hookshot_metrics_proxying_enabled`|Set this to `true` to expose the [Hookshot](configuring-playbook-bridge-hookshot.md) metrics on `https://matrix.example.com/metrics/hookshot`. To password-protect the metrics, see `matrix_metrics_exposure_http_basic_auth_users` above.
+`matrix_hookshot_metrics_enabled`|Set this to `true` to make [Hookshot](configuring-playbook-bridge-hookshot.md) expose metrics (locally, on the container network).
+`matrix_hookshot_metrics_proxying_enabled`|Set this to `true` to expose the [Hookshot](configuring-playbook-bridge-hookshot.md) metrics on `https://matrix.example.com/metrics/hookshot`. To password-protect the metrics, see `matrix_metrics_exposure_http_basic_auth_users` above.
 `matrix_SERVICE_metrics_proxying_enabled`|Various other services/roles may provide similar `_metrics_enabled` and `_metrics_proxying_enabled` variables for exposing their metrics. Refer to each role for details. To password-protect the metrics, see `matrix_metrics_exposure_http_basic_auth_users` above or `matrix_SERVICE_container_labels_metrics_middleware_basic_auth_enabled`/`matrix_SERVICE_container_labels_metrics_middleware_basic_auth_users` variables provided by each role.
 `matrix_media_repo_metrics_enabled`|Set this to `true` to make media-repo expose metrics (locally, on the container network).