Fix HermesClient import in docs

[zeel991]

Description

Fix incorrect import in documentation

The example was importing EvmPriceServiceConnection even though the code uses HermesClient.
This PR updates the import statement to:

import { HermesClient } from "@pythnetwork/hermes-client";

This ensures the example runs correctly and matches the intended API usage.

Type of Change

• New Page
• Page update/improvement
• Fix typo/grammar
• Restructure/reorganize content
• Update links/references
• Other (please describe):

Areas Affected

Checklist

• I ran pre-commit run --all-files to check for linting errors
• I have reviewed my changes for clarity and accuracy
• All links are valid and working
• Images (if any) are properly formatted and include alt text
• Code examples (if any) are complete and functional
• Content follows the established style guide
• Changes are properly formatted in Markdown
• Preview renders correctly in development environment

Additional Notes

Contributor Information

• Name: Zeel Darji
• Email:[email protected]

[vercel]

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