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##### SUMMARY
udm_dns_record contains probably copy&paste info from udm_dns_zone module, see https://github.com/ansible/ansible/blob/devel/lib/ansible/modules/cloud/univention/udm_dns_record.py#L64 Thus it's confusing how to use it, if one uses 'udm_dns_zone' in her playbook it would fail because invalid values.

##### ISSUE TYPE
- Bug Report

##### COMPONENT NAME
udm_dns_record module

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
ansible 2.7.7
  config file = /home/jiri/awebsys/ansible/ansible.cfg
  configured module search path = ['/home/jiri/.ansible/plugins/modules', '/usr/share/ansible/plugins/modules']
  ansible python module location = /usr/lib/python3/dist-packages/ansible
  executable location = /usr/bin/ansible
  python version = 3.7.3 (default, Apr  3 2019, 05:39:12) [GCC 8.3.0]

```
##### STEPS TO REPRODUCE
<!--- Describe exactly how to reproduce the problem, using a minimal test-case -->
```
$ ansible-doc udm_dns_record | sed -n '/^EXAMPLES/,$p'
EXAMPLES:

# Create a DNS record on a UCS
- udm_dns_zone:
    name: www
    zone: example.com
    type: host_record
    data:
      - a: 192.0.2.1


RETURN VALUES:
# 
```
##### EXPECTED RESULTS
<!--- Describe what you expected to happen when running the steps above -->
Should have valid example data.
- Univention
options:
    state:
        required: false
        default: "present"
        choices: [ present, absent ]
        description:
            - Whether the dns record is present or not.
    name:
        required: true
        description:
            - "Name of the record, this is also the DNS record. E.g. www for
               www.example.com."
    zone:
        required: true
        description:
            - Corresponding DNS zone for this record, e.g. example.com.
    type:
        required: true
        choices: [ host_record, alias, ptr_record, srv_record, txt_record ]
        description:
            - "Define the record type. C(host_record) is a A or AAAA record,
               C(alias) is a CNAME, C(ptr_record) is a PTR record, C(srv_record)
               is a SRV record and C(txt_record) is a TXT record."
    data:
        required: false
        default: []
        description:
            - "Additional data for this record, e.g. ['a': '192.0.2.1'].
               Required if C(state=present)."