docs: add devconf talk image link

[gunjjoshi]

Resolves None.

Description

What is the purpose of this pull request?

This pull request:

• adds the image link for the talk added in docs: add devconf talk #10496.

Related Issues

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None.

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.

AI Assistance

When authoring the changes proposed in this PR, did you use any kind of AI assistance?

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• No

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• Code generation (e.g., when writing an implementation or fixing a bug)
• Test/benchmark generation
• Documentation (including examples)
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Disclosure

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{{TODO: add disclosure if applicable}}

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@stdlib-js/reviewers

[stdlib-bot]

PR Commit Message

docs: add devconf talk image link

PR-URL: https://github.com/stdlib-js/stdlib/pull/10543

Reviewed-by: Philipp Burckhardt <pburckhardt@outlook.com>
Signed-off-by: Gunj Joshi <gunjjoshi8372@gmail.com>

Please review the above commit message and make any necessary adjustments.