Update README.md

Author: Vic Shóstak

README.md

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 <h1 align="center">
-  <img src="https://github.com/create-go-app/cli/blob/master/.github/images/cgapp_logo@2x.png" width="224px"/><br/>
+  <img src="https://raw.githubusercontent.com/create-go-app/cli/master/.github/images/cgapp_logo%402x.png" width="224px"/><br/>
   Create Go App CLI
 </h1>
 <p align="center">Create a new production-ready project with <b>backend</b> (Golang), <b>frontend</b> (JavaScript, TypeScript)<br/>and <b>deploy automation</b> (Ansible, Docker) by running one CLI command.<br/><br/>Focus on <b>writing</b> code and <b>thinking</b> of business-logic! The CLI will take care of the rest.</p>