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##### SUMMARY
<!--- Explain the problem briefly below, add suggestions to wording or structure -->
In the user module, in the docs for the password field, there is a link to instructions on how to create a password hash for the module to consume. Said link is broken, and gives a 404.


Cf. [the corresponding line in the user module](https://github.com/ansible/ansible/blob/2b0cd2c13f2021f839600d601f75dea2c0343ed1/lib/ansible/modules/user.py#L92)


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

this one doesn't, or i just could not find it : /

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

'''Add or remove SELF.NAME to or from GROUP depending on ACTION.
        ACTION can be 'add' or 'remove' otherwise 'remove' is assumed. '''
        rc = 0
        out = ''
        err = ''
        changed = False
        current = set(self._list_user_groups())
        if self.groups is not None:
            target = set(self.groups.split(','))
        else:
            target = set([])
        if self.append is False:
            for remove in current - target:
                (_rc, _out, _err) = self.__modify_group(remove, 'delete')
                rc += rc
                out += _out
                err += _err
                changed = True
        for add in target - current:
            (_rc, _out, _err) = self.__modify_group(add, 'add')
            rc += _rc
            out += _out
            err += _err
            changed = True
        return (rc, out, err, changed)
    def _update_system_user(self):