##### Summary
Document " <, >, <=, => " operators in name parameter of yum/dnf module. Currently the documentation does not mention that comparison operators are available, but they do work.

##### ISSUE TYPE
- Feature Idea

##### COMPONENT NAME
yum/dnf module

##### ADDITIONAL INFORMATION
The value operators work currently in the yum/dnf modules
```
yum :
   name: "pkg >= 1"
   state: present
```

Yum/dnf will determine the version available and install it if it matches the comparison operator

- If set to C(main), disable excludes defined in [main] in dnf.conf.
      - If set to C(repoid), disable excludes defined for given repo id.
    version_added: "2.7"
    type: str
  validate_certs:
    description:
      - This only applies if using a https url as the source of the rpm. e.g. for localinstall. If set to C(no), the SSL certificates will not be validated.
      - This should only set to C(no) used on personally controlled sites using self-signed certificates as it avoids verifying the source site.
    type: bool
    default: "yes"
    version_added: "2.7"
  allow_downgrade:
    description:
      - Specify if the named package and version is allowed to downgrade
        a maybe already installed higher version of that package.
        Note that setting allow_downgrade=True can make this module
        behave in a non-idempotent way. The task could end up with a set
        of packages that does not match the complete list of specified
        packages to install (because dependencies between the downgraded
        package and others can cause changes to the packages which were
        in the earlier transaction).
    type: bool
    default: "no"
    version_added: "2.7"
  install_repoquery:
    description:
      - This is effectively a no-op in DNF as it is not needed with DNF, but is an accepted parameter for feature
        parity/compatibility with the I(yum) module.
    type: bool
    default: "yes"