[irobot] Update documentation regarding button names

[lsiepel]

Fixes: #10388

[jlaur]

Thanks! This seems to fix the "small nit" mentioned in the linked issue, but I'm not sure this is fully addressed?

Add a mention to the docs that the password will be populated in the Thing and that you must copy that into the config files in order for it to persist. Without this detail it causes confusion because the Roomba will appear to work temporarily, but as soon as the Things file is edited, the password is lost and the button needs to be pushed again. I believe this issue is specific to working with config files.

[lsiepel]

hat the password will be populated in the Thing and that you must copy that into the config files in order for it to persist. Without this detail it causes confusion because the Roomba will appear to work temporarily, but as soon as the Things file is edited, the password is lost and the button needs to be pushed again.

Saving the password was already there, but maybe better to be explicit. While adapting it, i also made some other changes so it would be possible to use links.

[jlaur]

Thanks for explicitly mentioning copying the password, only some nit picking left.

[jlaur]

LGTM