If you're using the Glossary, choose whether you want to display a link to the Glossary in your table of contents. The link displays with a small book icon beneath the Home link:

To add or remove the glossary link in your table of contents:
- Go to Customize > Website. (Or, from the Glossary page, select Edit in settings next to Link in the table of contents.)
- In the Links and behavior section, under Table of contents elements, check or uncheck the box to Add a glossary link to the top of the table of contents.
- Save.
Refer to Website settings for more information on other settings available in Customize > Website.