Make docs

docs/resources/managed_group.md

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+---
+# generated by https://github.com/hashicorp/terraform-plugin-docs
+page_title: "boundary_managed_group Resource - terraform-provider-boundary"
+subcategory: ""
+description: |-
+  The managed group resource allows you to configure a Boundary group.
+---
+
+# boundary_managed_group (Resource)
+
+The managed group resource allows you to configure a Boundary group.
+
+
+
+<!-- schema generated by tfplugindocs -->
+## Schema
+
+### Required
+
+- **auth_method_id** (String) The resource ID for the auth method.
+
+### Optional
+
+- **description** (String) The managed group description.
+- **filter** (String) Boolean expression to filter the workers for this managed group.
+- **name** (String) The managed group name. Defaults to the resource name.
+
+### Read-Only
+
+- **id** (String) The ID of the group.
+
+