Add new links to Resources page (#1670)

* Add new links to Resources page

* Remove duplicated line

packages/docs/src/pages/resources.mdx

@@ -16,8 +16,9 @@ Tools, themes, extensions and examples built by the Theme UI community.
   Used on [Carbonplan’s](https://carbonplan.org) websites.
 - [**@undataforum/preset**](https://github.com/UNDataForum/design-system/tree/master/packages/preset):
   Used on [United Nations World Data Forum](https://undataforum.org/).
-- [**@hackersent/theme**](https://github.com/hackersent/theme/tree/main/packages/theme)
-- [**theme-ui-preset-nice-boys**](https://github.com/nice-boys/theme-ui-preset-nice-boys)
+- [**theme-ui-preset-geist**](https://github.com/lachlanjc/theme-ui-preset-geist):
+  Inspired by/adapted from [Geist UI](https://geist-ui.dev).
+- [**theme-ui-preset-nice-boys**](https://github.com/nice-boys/theme-ui-preset-nice-boys)  
 
 ## Component kits
 
@@ -46,10 +47,12 @@ Tools, themes, extensions and examples built by the Theme UI community.
 
 ## Project templates
 
+- [**@lachlanjc/next-theme-starter**](https://github.com/lachlanjc/next-theme-starter):
+  Next.js project for getting started with MDX & Theme UI.
 - [**@hackclub/theme-starter**](https://github.com/hackclub/theme-starter):
   Next.js project using [Hack Club Theme](https://theme.hackclub.com) & MDX.
 - [**Next.js MDX Blog Starter**](https://github.com/johnpolacek/nextjs-mdx-blog-starter):
-  Next.js blog starter for building blogs with Next.js, MDX, Theme UI, & Vercel.
+  Next.js blog starter for building blogs with MDX, Theme UI, & Vercel.
 - [**@mattjennings/nextjs-starter**](https://github.com/mattjennings/nextjs-starter):
   Next.js project using Theme UI & Framer Motion.
 - [**@hew/gatsby-theme-ui-starter**](https://github.com/hew/gatsby-theme-ui-starter):
@@ -71,4 +74,6 @@ Tools, themes, extensions and examples built by the Theme UI community.
   Library for using BEM-style modifiers on Theme UI components.
 - [**@mattjennings/react-modal**](https://github.com/mattjennings/react-modal):
   Library for making animated modals with Theme UI & Framer Motion.
+- [**React Layouts**](https://react-layouts.com/):
+  Grab-and-go layouts for React, including Theme UI.