Update modules/ROOT/pages/uploadcare.adoc

Co-authored-by: Farzad Hayat <[email protected]>

Author: kemister85

modules/ROOT/pages/uploadcare.adoc

@@ -41,7 +41,7 @@ tinymce.init({
   selector: "textarea",
   plugins: 'uploadcare',
   toolbar: 'uploadcare',
-  uploadcare_public_key: 'your_public_key',
+  uploadcare_public_key: '<your-public-key>',
 });
 ----