<!--- Verify first that your improvement is not already reported on GitHub -->
<!--- Also test if the latest release and devel branch are affected too -->
<!--- Complete *all* sections as described, this form is processed automatically -->

##### SUMMARY
<!--- Explain the problem briefly below, add suggestions to wording or structure -->

Following merge of #59716 revamping ios_facts module, the doc states the 'min' subset in examples but it's not defined in 'Documentation' supported options.
And in module_utils/network/ios/facts/facts.py ; the dict FACT_LEGACY_SUBSETS doesn't mention this 'min' subset.

<!--- HINT: Did you know the documentation has an "Edit on GitHub" link on every page ? -->

##### ISSUE TYPE
- Documentation Report

##### COMPONENT NAME
<!--- Write the short name of the rst file, module, plugin, task or feature below, use your best guess if unsure -->
ios_facts module

##### ANSIBLE VERSION
<!--- Paste verbatim output from "ansible --version" between quotes -->
```paste below
2.9
```

##### ADDITIONAL INFORMATION
<!--- Describe how this improves the documentation, e.g. before/after situation or screenshots -->

<!--- HINT: You can paste gist.github.com links for larger files -->

version_added: "2.9"
"""
EXAMPLES = """
- name: Gather all legacy facts
  ios_facts:
    gather_subset: all
- name: Gather only the config and default facts
  ios_facts:
    gather_subset:
      - config
- name: Do not gather hardware facts
  ios_facts:
    gather_subset:
      - "!hardware"
- name: Gather legacy and resource facts
  ios_facts:
    gather_subset: all
    gather_network_resources: all
- name: Gather only the interfaces resource facts and no legacy facts
  ios_facts:
    gather_subset:
      - '!all'
      - '!min'
    gather_network_resources:
      - interfaces
- name: Gather interfaces resource and minimal legacy facts
  ios_facts:
    gather_subset: min
    gather_network_resources: interfaces
- name: Gather L2 interfaces resource and minimal legacy facts