SEO: Update description

README.md

@@ -61,12 +61,10 @@ The API gracefully handles failures—data passes through unmodified, and you ge
 
 **Get started in 5 minutes—validate and enrich your first API call for free, no credit card required.**
 
-## Get the Full Version
+## Pricing
 
 - **Demo**: Free on Hugging Face Spaces
-- **[Buy on Gumroad](https://lunarautomata.gumroad.com/l/dtzqjt)** — Instant download
-- **[Buy on Whop](https://whop.com/api-development-integration-data-validation-and-enrichment-api)** — Dashboard access
-- **[Buy Now](https://buy.stripe.com/fZu6oH12D6Ak6xy1ZicZa14)** — Secure checkout
+- **Full Source Code**: $42.23
 
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