add Zap website link

[SusanGithaigaN]

add Zap website link

Lightning Network Gallery Update

Description

Brief description of what this PR changes:

• Adding new project(s)
• Updating existing project information
• Fixing data errors
• Other: ___________________

Changes Made

Add Zap website link

Updated Projects:

• Zap: Add website link and tag

Data Quality Checklist:

• All project names are accurate
• URLs are working and correct
• Tags are relevant and consistent with existing tags
• Project descriptions are clear and informative
• JSON syntax is valid (will be automatically checked)

Testing

• I have tested the JSON locally
• Links open correctly
• Project information is accurate

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For Maintainers:

• Data quality review completed
• No duplicate projects
• Consistent formatting
• Ready to merge