Let's say you wanna make a page called "Foo Bar".

Option A: WikiWeb style

1. Where would you link to "Foo Bar" from? Edit that page.
2. Make a WikiLink that looks like [[Foo Bar]].
3. Save that other page.
4. Now you'll see "Foo Bar" with a little question-mark link.
5. Follow it, write some Markdown, save your page.

Option B: Git style

1. Where would you link to "Foo Bar" from? Edit that file.
2. Make a WikiLink that looks like [[Foo Bar]].
3. Save and git add that other page.
4. Create Foo_Bar.md, write some Markdown, save and git add your page.
5. Commit and push.