Add hostname description

Author: aptalca

roles/generate-jenkins/templates/README.j2

@@ -274,6 +274,9 @@ Container images are configured using parameters passed at runtime (such as thos
 
 | Parameter | Function |
 | :----: | --- |
+{% if param_usage_include_hostname %}
+| `--hostname={{ param_hostname }}` | {{ param_hostname_desc }} |
+{% endif %}
 {% if param_usage_include_net %}
 | `--net={{ param_net }}` | {{ param_net_desc }} |
 {% endif %}

vars/_container-vars-blank

@@ -29,6 +29,7 @@ common_param_env_vars_enabled: true #PGID, PUID, etc, you can set it to 'optiona
 param_container_name: "{{ project_name }}"
 param_usage_include_hostname: false #you can set it to 'optional'
 param_hostname: "hostname"
+param_hostname_desc: "Set hostname for the container."
 param_usage_include_net: false #you can set it to 'optional'
 param_net: "host"
 param_net_desc: "Shares host networking with container."