add example

docs/data-sources/policy.md

@@ -0,0 +1,33 @@
+---
+page_title: "authentik_policy Data Source - terraform-provider-authentik"
+subcategory: "Customization"
+description: |-
+  Get policy by name
+---
+
+# authentik_policy (Data Source)
+
+Get policy by name
+
+## Example Usage
+
+```terraform
+# To get the ID of a policy by name
+
+data "authentik_policy" "default-authentication-flow-password-stage" {
+  name = "default-authentication-flow-password-stage"
+}
+
+# Then use `data.authentik_policy.default-authentication-flow-password-stage.id`
+```
+
+<!-- schema generated by tfplugindocs -->
+## Schema
+
+### Optional
+
+- `name` (String) Generated.
+
+### Read-Only
+
+- `id` (String) The ID of this resource.

examples/data-sources/authentik_policy/data-source.tf

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+# To get the ID of a policy by name
+
+data "authentik_policy" "default-authentication-flow-password-stage" {
+  name = "default-authentication-flow-password-stage"
+}
+
+# Then use `data.authentik_policy.default-authentication-flow-password-stage.id`