Thanks for pointing this out. I changed it also in the documentation at https://msls.co/. I hope this explains those options better:
DISPLAY LINK TO THE CURRENT LANGUAGE
This option allows the user of the plugin to choose whether or not to include a link to the current content in the output of the plugin. By default, this link is not included, but if the user selects this option, a link to the current content will be displayed. This could be particularly useful if the user wants to display a flag for the current language.
SHOW ONLY LINK WITH A TRANSLATION
When this option is enabled, the plugin will only display links to existing translations. If there is no translation available for the current content, no link will be displayed.
On the other hand, if this option is not selected, and there is no translation available, the plugin will display a link to the homepage of the website. This can be useful for directing users to the main page of the website, even if the content they were looking for is not available in their language.
