adding index.md files for powershell sdk docs

docs/tools/sdk/powershell/Reference/Beta/Index.md

@@ -0,0 +1,22 @@
+---
+id: beta
+title: Beta 
+pagination_label: Beta
+sidebar_label: Beta
+sidebar_position: 2
+sidebar_class_name: beta
+keywords: ['beta', 'PowerShell']
+description: PowerShell SDK reference Beta.
+slug: /tools/powershell/reference/beta
+tags: ['beta']
+--- 
+
+
+Welcome to the PowerShell SDK documentation for API Version Beta. This guide provides an overview of both Methods and Models, helping you understand how to interact with the API effectively.
+
+```mdx-code-block
+import DocCardList from '@theme/DocCardList';
+import {useCurrentSidebarCategory} from '@docusaurus/theme-common';
+
+<DocCardList items={useCurrentSidebarCategory().items}/>
+```