Incorrect link in web-speech-api index.html

[kallistisoft]

In the index.html file for the web-speech-api the link for "The code used on the pages." points to [https://github.com/mdn/dom-examples/web-speech-api]

While the current location is [https://github.com/mdn/dom-examples/tree/main/web-speech-api]

I would open a pull request, but since it's a single line change - I assume it's more expedient to just file an issue and have it handled by the core team.

Thank You.