(GSoC) Added remaining example and improved some existing examples

[YASH-GU24]

Why:

This contains the remaining example and suggested improvements as a part of GSoC.

What does your app/demo do?:

Helps in classifying audio to a specific genre using weaviate

How Has This Been Tested?

Instructions to reproduce are added in the readme. This has been tested locally on my computer.

Have you included a README.md file in your example?

Yes

[weaviate-git-bot]

Great to see you again! Thanks for the contribution.

beep boop - the SeMI bot 👋🤖