doc: improve title template docs

docs/content/2.guides/2.fallback-title.md

@@ -5,32 +5,16 @@ description: How Nuxt SEO enhances your page titles.
 
 ## Introduction
 
-Getting your page titles right is difficult. Nuxt SEO helps you by providing a fallback title and a default title template.
+Getting your page titles right is difficult. Nuxt SEO provides several utils
+to make it easier: fallback titles, page meta titles a default title template.
 
-Learn more about title templates with the [Page Titles](https://nuxtseo.com/learn/mastering-meta/titles) guide.
-
-## Page Meta Title
-
-Normally you would need to use `useHead()`{lang="ts"} or `useSeoMeta()`{lang="ts"} to set your page title.
-
-Nuxt SEO also gives you the option to add a title using [page meta](https://nuxt.com/docs/api/utils/define-page-meta) instead.
-
-```vue twoslash [pages/index.vue]
-<script lang="ts" setup>
-import { definePageMeta } from '#imports'
-
-// Note: does not work for dynamic pages, only accepts strings
-definePageMeta({
-  title: 'My Page Title'
-})
-</script>
-```
+You can learn more about titles and titles templates with the [Page Titles](https://nuxtseo.com/learn/mastering-meta/titles) guide.
 
 ## Fallback Title
 
 Ensures that every page has a title by generating one from the last slug segment.
 
-For example, if your page is `/blog/my-awesome-post`, the title will be `My Awesome Post`.
+For example, if your page is `'/blog/my-awesome-post'`{lang="ts'}, the title will be `'My Awesome Post'`{lang="ts'}.
 
 This is useful for when you have a lot of pages and don't want to manually set a title for each one
 or if you simply forget to set a title.
@@ -47,6 +31,37 @@ export default defineNuxtConfig({
 
 ## Default Title Template
 
-Sets a default title template for you with your [site name](/docs/site-config/guides/setting-site-config).
+By default, a title template is inserted for you in the `nuxt.config.ts`{lang="ts"} file.
+
+```ts
+// equivalent of what the module does
+useHead({
+  titleTemplate: '%s %separator %siteName',
+})
+```
 
-See the [Title Templates](/docs/nuxt-seo/guides/title-templates) guide for more information.
+This will set your titles to a template like `'Page Title | Site Name'`{lang="ts"}.
+
+You can either modify the template or the params:
+- `%s`{lang="ts"} is the page title `useHead({ title: 'My Page Title' })`{lang="ts"}
+- `%seperator`{lang="ts"} see [Title template params](https://nuxtseo.com/learn/mastering-meta/titles#template-params)
+- `%siteName`{lang="ts"} see [Site Config](/docs/site-config/guides/setting-site-config).
+
+You can disable this by [Disabling Default Meta](/docs/seo-utils/guides/default-meta#disable-default-meta) or simply overriding it.
+
+## Page Meta Title
+
+Normally you would need to use `useHead()`{lang="ts"} or `useSeoMeta()`{lang="ts"} to set your page title.
+
+Nuxt SEO also gives you the option to add a title using [page meta](https://nuxt.com/docs/api/utils/define-page-meta) instead.
+
+```vue twoslash [pages/index.vue]
+<script lang="ts" setup>
+import { definePageMeta } from '#imports'
+
+// Note: does not work for dynamic pages, only accepts strings
+definePageMeta({
+  title: 'My Page Title'
+})
+</script>
+```