Multiple broken links & "Adding 3D models" section does not exist even though listed in table of contents

[BananaJeanss]

There's multiple broken links in the hackpad guide currently:

There's multiple broken links in this section as shown in the image, all leading to 404 pages

• https://hackpad.hackclub.com/advancedguide#silkscreen
• https://hackpad.hackclub.com/errors
• https://hackpad.hackclub.com/advancedPCB

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The "Adding 3D models" section does not exist in the guide, though is still linked in the table of contents. Clicking on the link does nothing.

• https://hackpad.hackclub.com/guide#3d_models