Update readme.md

Author: dvejsada

readme.md

@@ -7,6 +7,10 @@ This custom component provides integration with [Rohlik.cz](https://www.rohlik.c
 
 ## Scan to add to cart
 
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 You can now use barcode scanner, such as [here](https://github.com/dvejsada/ha-barcode-scanner) to add products directly to your rohlik.cz cart by scanning barcode. You can find the connected automations in the automations directory in this repository. 
  - Add to Cart: The automation will search for the product by its barcode in the product list and add it to your cart.
  - Update data: The automation will automatically download current barcode to product id file from this repo each day at 3 a.m.