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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
```

if groups_need_mod:
                if self.local:
                    if self.append:
                        lgroupmod_add = set(groups).difference(current_groups)
                        lgroupmod_del = set()
                    else:
                        lgroupmod_add = set(groups).difference(current_groups)
                        lgroupmod_del = set(current_groups).difference(groups)
                else:
                    if self.append and not has_append:
                        cmd.append('-A')
                        cmd.append(','.join(group_diff))
                    else:
                        cmd.append('-G')
                        cmd.append(','.join(groups))
        if self.comment is not None and info[4] != self.comment:
            cmd.append('-c')
            cmd.append(self.comment)
        if self.home is not None and info[5] != self.home:
            cmd.append('-d')
            cmd.append(self.home)
            if self.move_home:
                cmd.append('-m')
        if self.shell is not None and info[6] != self.shell:
            cmd.append('-s')
            cmd.append(self.shell)
        if self.expires is not None:
            current_expires = int(self.user_password()[1])
            if self.expires < time.gmtime(0):
                if current_expires >= 0: