templates: Add IPA API connection variables to README.

All modules should use the same description for IPA API connection
variables. This change add description for ipaapi_context and
ipaapi_ldap_cache variable to the module README templates.

utils/templates/README-module+member.md.in

@@ -119,6 +119,8 @@ Variable | Description | Required
 -------- | ----------- | --------
 `ipaadmin_principal` | The admin principal is a string and defaults to `admin` | no
 `ipaadmin_password` | The admin password is a string and is required if there is no admin ticket available on the node | no
+`ipaapi_context` | The context in which the module will execute. Executing in a server context is preferred. If not provided context will be determined by the execution environment. Valid values are `server` and `client`. | no
+`ipaapi_ldap_cache` | Use LDAP cache for IPA connection. The bool setting defaults to yes. (bool) | no
 `name` \| `ALIAS` | The list of $name name strings. | yes
 `PARAMETER1` \| `API_PARAMETER_NAME` | DESCRIPTION | BOOL
 `PARAMETER2` \| `API_PARAMETER_NAME` | DESCRIPTION | BOOL

utils/templates/README-module.md.in

@@ -84,6 +84,8 @@ Variable | Description | Required
 -------- | ----------- | --------
 `ipaadmin_principal` | The admin principal is a string and defaults to `admin` | no
 `ipaadmin_password` | The admin password is a string and is required if there is no admin ticket available on the node | no
+`ipaapi_context` | The context in which the module will execute. Executing in a server context is preferred. If not provided context will be determined by the execution environment. Valid values are `server` and `client`. | no
+`ipaapi_ldap_cache` | Use LDAP cache for IPA connection. The bool setting defaults to yes. (bool) | no
 `name` \| `ALIAS` | The list of $name name strings. | yes
 `PARAMETER1` \| `API_PARAMETER_NAME` | DESCRIPTION | BOOL
 `PARAMETER2` \| `API_PARAMETER_NAME` | DESCRIPTION | BOOL