docs: small tweaks

docs/1.getting-started/6.data-fetching.md

@@ -21,7 +21,7 @@ When using a framework like Nuxt that can perform calls and render pages on both
 
 ### Network calls duplication
 
-The `useFetch` and `useAsyncData` composables ensure that once an API call is made on the server, the data is properly forwarded to the client in the payload. This JavaScript object is accessible through [useNuxtApp.payload](/docs/api/composables/use-nuxt-app#payload) and is used on the client to avoid refetching the same data when the code is executed in the browser.
+The `useFetch` and `useAsyncData` composables ensure that once an API call is made on the server, the data is properly forwarded to the client in the payload. This JavaScript object is accessible through [`useNuxtApp().payload`](/docs/api/composables/use-nuxt-app#payload) and is used on the client to avoid refetching the same data when the code is executed in the browser.
 
 ::alert{icon=⚙️}
 Use the [Nuxt DevTools](https://devtools.nuxtjs.org) to inspect this data in the payload tab.
@@ -197,7 +197,7 @@ To get the cached data by key, you can use [`useNuxtData`](/docs/api/composables
 
 #### Refresh and execute
 
-If you want to fetch or refresh data manually, use the `execute` or `refresh` function provided by the composables. `execute` and `refresh` methods work exactly the same.
+If you want to fetch or refresh data manually, use the `execute` or `refresh` function provided by the composables. (`execute` is an alias for `refresh` that works in exactly the same way but is more semantic for cases when `immediate: false`).
 
 ```vue
 <script setup>