##### 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 not HAS_DNF:
            if PY2:
                package = 'python2-dnf'
            else:
                package = 'python3-dnf'
            if self.module.check_mode:
                self.module.fail_json(
                    msg="`{0}` is not installed, but it is required"
                    "for the Ansible dnf module.".format(package),
                    results=[],
                )
            rc, stdout, stderr = self.module.run_command(['dnf', 'install', '-y', package])
            global dnf
            try:
                import dnf
                import dnf.cli
                import dnf.const
                import dnf.exceptions
                import dnf.subject
                import dnf.util