Replace TODOs with content

Author: alexluckett

docs/GETTING_STARTED.md

@@ -148,8 +148,4 @@ These files are called `Form definitions` and are built up of:
 - `conditions` - used to conditionally show and hide pages and
 - `lists` - data used to in selection fields like [Select](https://design-system.service.gov.uk/components/select/), [Checkboxes](https://design-system.service.gov.uk/components/checkboxes/) and [Radios](https://design-system.service.gov.uk/components/radios/)
 
-The [types](https://github.com/DEFRA/forms-designer/blob/main/model/src/form/form-definition/types.ts), `joi` [schema](https://github.com/DEFRA/forms-designer/blob/main/model/src/form/form-definition/index.ts) and the [examples](test/form/definitions) folder are a good place to learn about the structure of these files.
-
-TODO - Link to documentation for `Form metadata`
-
-TODO - Link to documentation for `Form definition`
+To understand the full set of options available to you, consult our [schema documentation](https://defra.github.io/forms-engine-plugin/schemas/). Specifically, the [form definition schema](https://defra.github.io/forms-engine-plugin/schemas/form-definition-v2-payload-schema).

docs/PLUGIN_OPTIONS.md

@@ -15,7 +15,7 @@ The forms plugin is configured with [registration options](https://hapi.dev/api/
 
 ## Services
 
-TODO
+See [our services documentation](./features/code-based/CUSTOM_SERVICES.md).
 
 ## Custom controllers
 

docs/features/code-based/PAGE_VIEWS.md

@@ -1,8 +1,7 @@
 # Templates and views
 
-## Extending the default layout
-
-TODO
+> [!NOTE]
+> DXT currently handles the page layout internally within the plugin and cannot be customised. We plan to offer this customisation as a feature, please contact us on Slack if this is urgent for you.
 
 To override the default page template, vision and nunjucks both need to be configured to search in the `forms-engine-plugin` views directory when looking for template files.