##### SUMMARY

When browsing the [toml inventory source](https://docs.ansible.com/ansible/latest/plugins/inventory/toml.html) documentation, I found the examples included on that page to be confusing.

It looks like there should be three separate example TOML files, but instead, there's one code listing, with three YAML parameters, like:

```yaml
example1: |
    toml here...

example2: |
    toml here...

example3: |
    toml here...
```

This makes it confusing as to how I'm supposed to format my toml-based inventory, because it looks like I can define multiple TOML inventories in one YAML file as arbitrary strings, or something along those lines.

##### ISSUE TYPE
- Documentation Report

##### COMPONENT NAME

toml

##### ANSIBLE VERSION

N/A

##### CONFIGURATION

N/A

##### OS / ENVIRONMENT

N/A

##### ADDITIONAL INFORMATION

N/A
if not file_name or not isinstance(file_name, string_types):
            raise AnsibleParserError("Invalid filename: '%s'" % to_native(file_name))
        b_file_name = to_bytes(self.loader.path_dwim(file_name))
        if not self.loader.path_exists(b_file_name):
            raise AnsibleFileNotFound("Unable to retrieve file contents", file_name=file_name)
        try:
            (b_data, private) = self.loader._get_file_contents(file_name)
            return toml.loads(to_text(b_data, errors='surrogate_or_strict'))
        except toml.TomlDecodeError as e:
            raise AnsibleParserError(
                'TOML file (%s) is invalid: %s' % (file_name, to_native(e)),
                orig_exc=e
            )
        except (IOError, OSError) as e:
            raise AnsibleParserError(
                "An error occurred while trying to read the file '%s': %s" % (file_name, to_native(e)),
                orig_exc=e
            )
        except Exception as e:
            raise AnsibleParserError(
                "An unexpected error occurred while parsing the file '%s': %s" % (file_name, to_native(e)),
                orig_exc=e
            )
    def parse(self, inventory, loader, path, cache=True):