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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
```

group_diff = set(current_groups).symmetric_difference(groups)
            groups_need_mod = False
            if group_diff:
                if self.append:
                    for g in groups:
                        if g in group_diff:
                            groups_need_mod = True
                            break
                else:
                    groups_need_mod = True
            if groups_need_mod:
                cmd.append('-G')
                new_groups = groups
                if self.append:
                    new_groups = groups | set(current_groups)
                cmd.append(','.join(new_groups))
        if self.expires is not None:
            current_expires = int(self.user_password()[1])
            
            
            if self.expires <= time.gmtime(0):
                if current_expires > 0:
                    cmd.append('-e')
                    cmd.append('0')
            else:
                
                current_expire_date = time.gmtime(current_expires)
                
                if current_expires <= 0 or current_expire_date[:3] != self.expires[:3]:
                    cmd.append('-e')