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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
```

cmd.append(self.home)
        if self.shell is not None:
            cmd.append('-s')
            cmd.append(self.shell)
        if self.create_home:
            cmd.append('-m')
            if self.skeleton is not None:
                cmd.append('-k')
                cmd.append(self.skeleton)
        cmd.append(self.name)
        (rc, out, err) = self.execute_command(cmd)
        
        if self.password is not None:
            cmd = []
            cmd.append(self.module.get_bin_path('chpasswd', True))
            cmd.append('-e')
            cmd.append('-c')
            self.execute_command(cmd, data="%s:%s" % (self.name, self.password))
        return (rc, out, err)
    def modify_user_usermod(self):
        cmd = [self.module.get_bin_path('usermod', True)]
        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.group is not None:
            if not self.group_exists(self.group):
                self.module.fail_json(msg="Group %s does not exist" % self.group)
            ginfo = self.group_info(self.group)
            if info[3] != ginfo[2]: