docs: update module options (#1755)

docs/content/4.api/3.configuration.md

@@ -14,17 +14,21 @@ export default defineNuxtConfig({
 })
 ```
 
-## `base`
+## `api`
 
-- Type: `String`{lang=ts}
-- Default: `'/_content'`{lang=ts}
+- Type: `Record<String, any>`{lang=ts}
+- Default: `{ baseURL: '/api/_content' }`{lang=ts}
+
+Change default behaviour of Content APIs. 
 
-Base route that will be used for content api.
+- `baseURL`{lang=ts}: change the base URL of Content APIs. Default is `/api/_content`.
 
 ```ts [nuxt.config.ts]
 export default defineNuxtConfig({
   content: {
-    base: '/_content'
+    api: {
+      baseURL: '/api/_my_content'
+    }
   }
 })
 ```
@@ -313,6 +317,10 @@ List of locale codes. This codes will be used to detect contents locale.
 
 Default locale for top level contents. Module will use first locale code from `locales` array if this option is not defined.
 
+::alert
+Note that in case of defining multiple locales, Module will filter content with `defaultLocale`. If you want to fetch contents of another locale, you need to use `where` option.
+::
+
 ## `documentDriven`
 
 - Type: `Boolean | Object`{lang=ts}