Add stLOOP, HWHLP, and WHLP to sponsored feeds docs

Description

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

Related Issues

Closes #

Additional Notes

Contributor Information

• Name:
• Email:

Screenshots