Display getting started as the index page

Signed-off-by: jffarge <jf@dagger.io>

docs/getting-started/1200-local-dev.md

@@ -1,5 +1,5 @@
 ---
-slug: /
+slug: /1200/local-dev
 displayed_sidebar: europa
 ---
 

docs/getting-started/index.md

@@ -0,0 +1,15 @@
+---
+slug: /
+displayed_sidebar: europa
+---
+
+# Getting Started
+
+```mdx-code-block
+import DocCardList from '@theme/DocCardList';
+import {useCurrentSidebarCategory} from '@docusaurus/theme-common';
+
+Run your CI/CD pipelines locally, then easily integrate them with any CI environment.
+
+<DocCardList items={useCurrentSidebarCategory().items}/>
+```