docs: update home page

src/pages/index.mdx

@@ -2,4 +2,26 @@
 title: Home
 ---
 
-# Youd docs
+# 👋 Welcome
+
+This is a teeny tiny template for starting a docs project.
+
+## Setup
+
+The template is intended to be used with [Codespaces](https://github.com/features/codespaces) and [GitHub Pages](https://docs.github.com/en/pages/getting-started-with-github-pages/configuring-a-publishing-source-for-your-github-pages-site).
+
+```bash
+npm i
+```
+
+Get a preview of the docs.
+
+```bash
+npm run dev
+```
+
+Open [localhost:3000](http://localhost:3000)
+
+## Resources
+
+* [Theme Configuration](https://nextra.site/docs/docs-theme/theme-configuration)

src/theme.config.tsx

@@ -2,7 +2,8 @@ const config = {
   logo: <span>Docs Template</span>,
   project: {
     link: 'https://github.com/zeiss/docs-template'
-  }
+  },
+  docsRepositoryBase: 'https://github.com/zeiss/docs-template/tree/main'
 }
 
 export default config