Incorrect link fragments

**Issue description:**

I'm not sure if these links are actually incorrect, but while browsing the documentation, I noticed something seemed off.

For example:
https://docs.godotengine.org/en/stable/tutorials/2d/introduction_to_2d.html#d-in-2d
https://docs.godotengine.org/en/stable/tutorials/2d/introduction_to_2d.html#d-workspace

The fragment identifiers here are missing the numbers:
https://docs.godotengine.org/en/stable/tutorials/2d/introduction_to_2d.html#3d-in-2d
https://docs.godotengine.org/en/stable/tutorials/2d/introduction_to_2d.html#2d-workspace

If it's expected behavior that the fragment name does not match the heading text, or if there's another reason, then this is not an error.