##### 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

import dnf.exceptions
    import dnf.subject
    import dnf.util
    HAS_DNF = True
except ImportError:
    HAS_DNF = False
from ansible.module_utils._text import to_native, to_text
from ansible.module_utils.urls import fetch_file
from ansible.module_utils.six import PY2, text_type
from distutils.version import LooseVersion
from ansible.module_utils.basic import AnsibleModule
from ansible.module_utils.yumdnf import YumDnf, yumdnf_argument_spec
class DnfModule(YumDnf):
    """
    DNF Ansible module back-end implementation
    """
    def __init__(self, module):
        
        super(DnfModule, self).__init__(module)
        self._ensure_dnf()
        self.lockfile = "/var/cache/dnf/*_lock.pid"
        self.pkg_mgr_name = "dnf"
        try:
            self.with_modules = dnf.base.WITH_MODULES
        except AttributeError:
            self.with_modules = False
        
        self.allowerasing = self.module.params['allowerasing']
        self.nobest = self.module.params['nobest']
    def is_lockfile_pid_valid(self):