chore: reorganize docs apps (#7228)

* reorganize docs apps

* add README

* fix directory

* add condition for old docs

www/apps/resources/references/modules/workflows/page.mdx

@@ -0,0 +1,16 @@
+---
+slug: /references/workflows
+---
+
+import { TypeList } from "docs-ui"
+
+# Workflows API Reference
+
+This section of the documentation provides a reference to the utility functions of the `@medusajs/workflows-sdk` package.
+
+## Functions
+
+- [createStep](../../workflows/functions/workflows.createStep/page.mdx)
+- [createWorkflow](../../workflows/functions/workflows.createWorkflow/page.mdx)
+- [parallelize](../../workflows/functions/workflows.parallelize/page.mdx)
+- [transform](../../workflows/functions/workflows.transform/page.mdx)