docs: add icon

Author: reddec

README.md

@@ -5,6 +5,7 @@
 [![donate](https://img.shields.io/badge/help_by️-donate❤-ff69b4)](http://reddec.net/about/#donate)
 [![Download](https://api.bintray.com/packages/reddec/debian/trusted-cgi/images/download.svg)](https://bintray.com/reddec/debian/trusted-cgi/_latestVersion)
 
+![](https://bintray-binary-objects-or-production.s3-accelerate.amazonaws.com/80ee75735ebc642670140a263e7e94f32fb8ce932933626ef3c4812006295af0)
 
 Lightweight self-hosted lambda/applications/cgi/serverless-functions engine.