Ib pagetoc

[Corb3nik]

🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥🔥

• Adds page ToC
• Fixes incorrect headings
• Removes theme switcher in menu bar
• To be merged after https://github.com/caido/documentation/pull/81

[render[bot]]

Your Render PR Server URL is https://documentation-pr-82.onrender.com.

Follow its progress at https://dashboard.render.com/static/srv-coq6s2ud3nmc73b1o040.