The front page for every wiki space on this site is called “Welcome”. On the main menu, either use the “New page” link and enter “Welcome”, or use “Search matching page names” and search for “Welcome” (this only works if the page already exists) in order to edit the front page.
On the Welcome page, use a top level heading (using a single “#”) because that’s what’s going to be shown on the main menu.
If you’re addig links to the Welcome page, be sure to specify the whole page:
=> /page/Introduction Introduction
Instead of:
=> Introduction
The reason is that the Welcome page is shown without the “/page” prefix. So if you’re looking at “gemini://transjovian.org/” you’re seeing the Welcome page, and if you were to follow a link to “Introduction”, you’d get sent to “gemini://transjovian.org/Introduction” – but that’s wrong, you need “gemini://transjovian.org/page/Introduction”.