tweaked logo

src/@rocketseat/gatsby-theme-docs/components/Logo.js

 import styled from '@emotion/styled';
 
-import logo from '../../../docs/eicweb-logo.png';
+import logo from '../../../docs/eicweb-logo-small.png';
 
 export default styled.div`
-  width: 260px;
+  width: 220px;
   height: 90px;
   background-size: contain;
   background: url(${logo}) center no-repeat;