updated structure

old code/extensions/chrome_extension/icons/README.md

@@ -0,0 +1,7 @@
+# Placeholder for icon files - in production, add actual PNG icons:
+# - icon16.png (16x16 pixels)
+# - icon48.png (48x48 pixels)  
+# - icon128.png (128x128 pixels)
+
+# For now, create simple text-based icons using SVG converted to PNG
+# These should be replaced with proper icons later