feat(docs): describe addTypeTemplate

docs/3.api/4.advanced/2.kit.md

@@ -1816,7 +1816,7 @@ export default defineNuxtPlugin((nuxtApp) => {
 
 ### `addTemplate`
 
-Renders given template using lodash template during build into the project buildDir.
+Renders given template using [lodash template](https://lodash.com/docs/4.17.15#template) during build into the project buildDir.
 
 #### Type
 
@@ -1881,6 +1881,63 @@ A template object or a string with the path to the template. If a string is prov
 
 ### `addTypeTemplate(templateOptions)`
 
+Renders given template using [lodash template](https://lodash.com/docs/4.17.15#template) during build into the project buildDir, then registers it as types.
+
+#### Type
+
+```ts
+function addTypeTemplate (template: NuxtTypeTemplate | string): NuxtTemplate
+
+interface NuxtTemplate {
+  src?: string
+  filename?: string
+  dst?: string
+  options?: Record<string, any>
+  getContents?: (data: Record<string, any>) => string | Promise<string>
+}
+```
+
+
+#### Parameters
+
+##### `template`
+
+**Type**: `NuxtTypeTemplate | string`
+
+**Required**: `true`
+
+A template object or a string with the path to the template. If a string is provided, it will be converted to a template object with `src` set to the string value. If a template object is provided, it must have the following properties:
+
+- `src` (optional)
+
+  **Type**: `string`
+
+  Path to the template. If `src` is not provided, `getContents` must be provided instead.
+
+- `filename` (optional)
+
+  **Type**: `string`
+
+  Filename of the template. If `filename` is not provided, it will be generated from the `src` path. In this case, the `src` option is required.
+
+- `dst` (optional)
+
+  **Type**: `string`
+
+  Path to the destination file. If `dst` is not provided, it will be generated from the `filename` path and nuxt `buildDir` option.
+
+- `options` (optional)
+
+  **Type**: `Options`
+
+  Options to pass to the template.
+
+- `getContents` (optional)
+
+  **Type**: `(data: Options) => string | Promise<string>`
+
+  A function that will be called with the `options` object. It should return a string or a promise that resolves to a string. If `src` is provided, this function will be ignored.
+
 ### `updateTemplates({ filter?: ResolvedNuxtTemplate => boolean })`
 
 ## Nitro