Add PCD @ San Marcos, TX to the PCD map

[github-actions]

Closes #123

This PR was generated from the "New Event" issue form for PCD @ San Marcos, TX.
Submitted by @nataliefreed.

Review checklist

• The event data below is accurate
• The map pin is placed correctly (check Plus Code)
• The event displays correctly in the Netlify preview (link posted by the Netlify bot)

Event data

Field	Value
Event name	PCD @ San Marcos, TX
Contact	Natalie Freed (nataliefreed@txstate.edu)
Format	In person
Date	No response
End date	No response
Start time	No response
End time	No response
Address	No response
Plus Code	76X4V3M5+3J
City	San Marcos, TX
Country	USA
Organization	Families Learning Together
Organization URL	https://fltsmtx.org/
Organization type	Fablab, makerspace, hackerspace
Event URL	No response
Event page	No response
Forum thread	https://discourse.processing.org/t/pcd-san-marcos-tx-2026/48884
Short description	No response
Activities	Beginner introductions to Processing or p5.js, Hands-on workshops, Show-and-tell, Student project presentations
Organizers	No response

Long description

No response

[netlify]

✅ Deploy Preview for processing-community-day ready!

Name	Link
🔨 Latest commit	2aa0edd
🔍 Latest deploy log	https://app.netlify.com/projects/processing-community-day/deploys/6a3d80fa675c25000847f477
😎 Deploy Preview	https://deploy-preview-124--processing-community-day.netlify.app
📱 Preview on mobile	Toggle QR Code... Use your smartphone camera to open QR code link.
🤖 Make changes	Run an agent on this branch

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