fix: update deprecation warning link to docs site

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: VinciGit00

src/index.ts

@@ -1,7 +1,7 @@
 console.warn(
 	"[scrapegraph-js] WARNING: This version (1.x) is deprecated and will no longer receive updates. " +
 	"Please upgrade to scrapegraph-js v2 for the latest features, bug fixes, and API v2 support. " +
-	"See the migration guide: https://github.com/ScrapeGraphAI/scrapegraph-js/blob/main/MIGRATION.md",
+	"See the migration guide: https://docs.scrapegraphai.com/transition-from-v1-to-v2",
 );
 
 export {