Docs hash links don't work

[edemaine]

In most READMEs, there's a case error (?) in the hash parts of links.

For example, https://primitives.solidjs.community/package/mouse links to #createMousePosition but the actual anchor is #createmouseposition. https://primitives.solidjs.community/package/mouse#createMousePosition doesn't work but https://primitives.solidjs.community/package/mouse#createmouseposition does.

Even with the case errors, the anchor links seem fine on GitHub, e.g. https://github.com/solidjs-community/solid-primitives/tree/main/packages/mouse#createMousePosition works. So maybe it's a router issue... but the easy fix is to lower-case the hashes.