Fixed Read the Docs deprecation

[pooja1pathak]

Proposed changes

Fix for #731

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[github-actions]

CLA Assistant Lite bot All contributors have signed the CLA ✍️

[c0c0n3]

@pooja1pathak that's great, did you check the docs build fine and the rendered site works as expected?

[pooja1pathak]

@c0c0n3 I have checked, the build failed for mkdocs version 1.5.1 and without os version. I have updated the PR and build was successful for my branch:

[c0c0n3]

@pooja1pathak cool bananas, I'm merging this PR, then we should check if the ReadTheDocs badge on this repo's readme gets green...