feat: add new documentation about templates

README.md

@@ -245,6 +245,7 @@ For more advanced topics see the documentation. For installation see [Usage](#us
 - [Deleting translated documents](./docs/03-deleting-translated-documents.md)
 - [Importing plugin components](./docs/04-importing-plugin-components.md)
 - [Allowing the same slug on different language versions](./docs/05-allowing-the-same-slug-on-different-language-versions.md)
+- [Remove default new document template](./docs/06-remove-default-new-document-template.md)
 
 ## License
 

docs/06-remove-default-new-document-template.md

@@ -0,0 +1,28 @@
+# Remove default new document template
+
+This plugin creates new [Parameterized initial value templates](https://www.sanity.io/docs/initial-value-templates#66d873e2136f) so that any schema types configured in the plugin can be started with a language field already set.
+
+However, it does not remove the default new document template which would start a document with no language field value. So your "new document" menus might look like this:
+
+![New document menu with default and added options](./img/new-document-default.png)
+
+To remove the default new document option, update your Sanity Studio configuration like below, where `prev` represents all previously registered templates in the Studio, and we filter out some defaults based on schema type and ID.
+
+```ts
+// ./sanity.config.ts
+
+export default defineConfig({
+  //...rest of config
+  schema: {
+    // ...rest of schema
+
+    // Filter out the default template for new "page" and "lesson" type documents
+    templates: (prev) =>
+      prev.filter((template) => !['page', 'lesson'].includes(template.id)),
+  },
+})
+```
+
+Now your new document menu for just this type will look like this
+
+![New document menu with only added options](./img/new-document-filtered.png)