Merge pull request #6 from Oreoxmt/ran-huang-patch-1

rm background color from logo

Author: Oreoxmt

src/addlogo.js

@@ -4,7 +4,6 @@ function addLogo(file, url, alt, href) {
   const schema = JSON.parse(fs.readFileSync(file, 'utf8'));
   schema["info"]["x-logo"] = {
       "url": url,
-      "backgroundColor": "#FFFFFF",
       "altText": alt,
       "href": href,
   };