added treeview dependency

src/components/Docs/SidebarSection/index.tsx

@@ -0,0 +1,17 @@
+import React from "react";
+import { SidebarTitle } from "./style";
+
+export interface SidebarSectionProps {
+  readonly title: string;
+}
+
+const SidebarSection = ({ title, children }: React.PropsWithChildren<SidebarSectionProps>) => {
+  return (
+    <div>
+      <SidebarTitle>{title}</SidebarTitle>
+      {children}
+    </div>
+  )
+}
+
+export default SidebarSection;

src/components/Docs/SidebarSection/style.tsx

@@ -0,0 +1,5 @@
+import styled from "styled-components";
+
+export const SidebarTitle = styled.h3`
+  text-transform: uppercase;
+`;