diff --git a/README.md b/README.md
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+++ b/README.md
@@ -34,6 +34,7 @@ The basic generation mechanism makes the templates and routes interchangeable (i
 | EVENT_NAME | String | "Please set the event name" | The event's name - used to generate pdf text.
 | CURRENCY_SYMBOL | String | "€" | The your currency's symbol - used to generate pdf text.
 | SPONSORING_RECEIPT_MINIMUM_AMOUNT | String | "10" | The mimimum total donation amount a sponsor has to donate to be able to receive a donation receipt - used to generate pdf text.
+| SPONOR_LOGOS | Array<String> | Empty png | The sponsor images you want to loop through. You can provide them via http url, local file or base64-encoded image.
 
 ## Templates
 > The document server uses html templates to generate various pdf documents.