fix: detailContainer Component - Replaced class by func. comp (#130)

* refactor: coverted class comp. into func.comp

* refactor: added forward ref comp.

* fix: fixed external link color

* fix: fixed typo

* refactor: applied feedbacks

src/components/DetailContainer/DetailContainerContentReadme.tsx

@@ -0,0 +1,17 @@
+import React from 'react';
+
+import { preventXSS } from '../../utils/sec-utils';
+
+import Readme from '../Readme';
+
+interface Props {
+  description?: string;
+}
+
+const DetailContainerContentReadme: React.FC<Props> = ({ description }) => {
+  if (!description) return null;
+  const encodedReadme = preventXSS(description);
+  return <Readme description={encodedReadme} />;
+};
+
+export default DetailContainerContentReadme;