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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
```

out += _out
            err += _err
        
        _rc, _out, _err = self._handle_lock()
        if rc is None:
            rc = _rc
        out += _out
        err += _err
        return (rc, out, err)
    def modify_user(self):
        cmd = [
            self.module.get_bin_path('pw', True),
            'usermod',
            '-n',
            self.name
        ]
        cmd_len = len(cmd)
        info = self.user_info()
        if self.uid is not None and info[2] != int(self.uid):
            cmd.append('-u')
            cmd.append(self.uid)
            if self.non_unique:
                cmd.append('-o')
        if self.comment is not None and info[4] != self.comment:
            cmd.append('-c')
            cmd.append(self.comment)
        if self.home is not None:
            if (info[5] != self.home and self.move_home) or (not os.path.exists(self.home) and self.create_home):
                cmd.append('-m')
            if info[5] != self.home: