fix(devx): Update link to the crate docs

[lucas-tortora]

Description of change

Updated link to the hosted crate GH pages doc.

Links to any relevant issues

fixes iotaledger/devx#473

Type of change

• Documentation Fix

How the change has been tested

Docs were built locally

Change checklist

Tick the boxes that are relevant to your changes, and delete any items that are not.

• I have followed the contribution guidelines for this project
• I have performed a self-review of my own code
• I have commented my code, particularly in hard-to-understand areas
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• I have checked that new and existing unit tests pass locally with my changes