add related monorepo link

Author: deptno

README.md

@@ -143,3 +143,6 @@ export const Home = props =>
 - styled-jsx/css [issue#2](https://github.com/deptno/next.js-typescript-starter-kit/issues/2)
 - external css, module [issue#3](https://github.com/deptno/next.js-typescript-starter-kit/issues/3)
 
+### Related
+
+- [typescript-monorepo-next-example](https://github.com/deptno/typescript-monorepo-next-example) - Next.js version