Fix UI docs

Author: manuelwedler

docs/2. Running Sourcify/2-UI.mdx

@@ -4,9 +4,9 @@ slug: /running-ui
 ---
 
 import EmbedReadme from "../EmbedReadme";
-const URL = "https://raw.githubusercontent.com/ethereum/sourcify/master/ui/README.md";
+const URL = "https://raw.githubusercontent.com/sourcifyeth/ui/master/README.md";
 const displayURL = URL.replace("https://raw.githubusercontent.com/", "");
 export const ReadmeLink = () => (<a href={URL}>{displayURL}</a>);
 
 *Content from <ReadmeLink/>*
-<EmbedReadme url={URL}/>
+<EmbedReadme url={URL}/>