doc/cephadm/services: Update monitoring.rst to add additional templates

The current documentation lacks a lot of other available templates as
the source code here:
https://github.com/ceph/ceph/tree/main/src/pybind/mgr/cephadm/templates/services

v2 - This updated commit fixes the j2 extensions I left in the previous one wrongly.
v3 - This updated commit changes the title as per PR's comment
orientation

Signed-off-by: Alexon Oliveira <[email protected]>

Author: AlexonOliveiraRH

doc/cephadm/services/monitoring.rst

@@ -306,24 +306,24 @@ Option names
 The following templates for files that will be generated by cephadm can be
 overridden. These are the names to be used when storing with ``ceph config-key set``:
 
-- ``services/alertmanager/alertmanager.yml.j2``
-- ``services/alertmanager/web.yml.j2``
-- ``services/grafana/ceph-dashboard.yml.j2``
-- ``services/grafana/grafana.ini.j2``
-- ``services/ingress/haproxy.cfg.j2``
-- ``services/ingress/keepalived.conf.j2``
-- ``services/iscsi/iscsi-gateway.cfg.j2``
-- ``services/mgmt-gateway/external_server.conf.j2``
-- ``services/mgmt-gateway/internal_server.conf.j2``
-- ``services/mgmt-gateway/nginx.conf.j2``
-- ``services/nfs/ganesha.conf.j2``
-- ``services/node-exporter/web.yml.j2``
-- ``services/nvmeof/ceph-nvmeof.conf.j2``
-- ``services/oauth2-proxy/oauth2-proxy.conf.j2``
-- ``services/prometheus/prometheus.yml.j2``
-- ``services/prometheus/web.yml.j2``
-- ``services/loki.yml.j2``
-- ``services/promtail.yml.j2``
+- ``services/alertmanager/alertmanager.yml``
+- ``services/alertmanager/web.yml``
+- ``services/grafana/ceph-dashboard.yml``
+- ``services/grafana/grafana.ini``
+- ``services/ingress/haproxy.cfg``
+- ``services/ingress/keepalived.conf``
+- ``services/iscsi/iscsi-gateway.cfg``
+- ``services/mgmt-gateway/external_server.conf``
+- ``services/mgmt-gateway/internal_server.conf``
+- ``services/mgmt-gateway/nginx.conf``
+- ``services/nfs/ganesha.conf``
+- ``services/node-exporter/web.yml``
+- ``services/nvmeof/ceph-nvmeof.conf``
+- ``services/oauth2-proxy/oauth2-proxy.conf``
+- ``services/prometheus/prometheus.yml``
+- ``services/prometheus/web.yml``
+- ``services/loki.yml``
+- ``services/promtail.yml``
 
 You can look up the file templates that are currently used by cephadm in
 ``src/pybind/mgr/cephadm/templates``: