Updated Audio Visualization url in examples.yml

[LarryBattle]

Problem:

When I click on the "Audio Visualization" link from aframe.io, a github 404 is returned. Direct URL: https://aframe.io/examples/showcase/audio-visualization/

Screenshot

Solution:

The repo https://www.github.com/ngokevin/kframe redirects to https://github.com/supermedium/superframe/ .

So the fix is to update the old URL with the updated URL.

• Old URL: https://ngokevin.github.io/kframe/components/audioanalyser/examples/showcase/
• New URL: https://supermedium.github.io/superframe/components/audioanalyser/examples/showcase/

[ngokevin]

Oops, thanks!