docs: update link for the fossasia talk

[gunjjoshi]

Progresses #6673.

Description

What is the purpose of this pull request?

This pull request:

• adds a link to the image for this talk.

Related Issues

Does this pull request have any related issues?

This pull request:

• progresses docs: add fossasia talk #6673.

Questions

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No.

Other

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No.

Checklist

Please ensure the following tasks are completed before submitting this pull request.

• Read, understood, and followed the contributing guidelines.

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