Docs: Gif updation for data discovery

[RounakDhillon]

Describe your changes:

Fixes

I worked on Gif updation of data discovery.

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Type of change:

• [ ] Bug fix
• [ ] Improvement
• [ ] New feature
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
• [x] Documentation

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Checklist:

• [x] I have read the CONTRIBUTING document.
• [ ] My PR title is Fixes <issue-number>: <short explanation>
• [ ] I have commented on my code, particularly in hard-to-understand areas.
• [ ] For JSON Schema changes: I updated the migration scripts or explained why it is not needed.

[github-actions[bot]]

Hi there 👋 Thanks for your contribution!

The OpenMetadata team will review the PR shortly! Once it has been labeled as safe to test, the CI workflows will start executing and we'll be able to make sure everything is working as expected.

Let us know if you need any help!

[harshach]

We should show the default hierarchical organization of different type of assets, that allows users browsing cc @ayush-shah