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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
```

'''
        Return the next available uid. If system=True, then
        uid should be below of 500, if possible.
        '''
        cmd = self._get_dscl()
        cmd += ['-list', '/Users', 'UniqueID']
        (rc, out, err) = self.execute_command(cmd, obey_checkmode=False)
        if rc != 0:
            self.module.fail_json(
                msg="Unable to get the next available uid",
                rc=rc,
                out=out,
                err=err
            )
        max_uid = 0
        max_system_uid = 0
        for line in out.splitlines():
            current_uid = int(line.split(' ')[-1])
            if max_uid < current_uid:
                max_uid = current_uid
            if max_system_uid < current_uid and current_uid < 500:
                max_system_uid = current_uid
        if system and (0 < max_system_uid < 499):
            return max_system_uid + 1
        return max_uid + 1
    def _change_user_password(self):