book: Update libadwaita chapter

Hofer-Julian · Hofer-Julian · commit 5d35b1de9658 · 2022-08-16T22:06:45.000+02:00
diff --git a/book/src/SUMMARY.md b/book/src/SUMMARY.md
@@ -24,5 +24,5 @@
 - [Manipulating State of To-Do App](todo_2.md)
 - [CSS](css.md)
 - [Libadwaita](libadwaita.md)
-    - [Let To-Do App Follow GNOME's HIG](todo_3.md)
+    - [Let To-Do App use Libadwaita](todo_3.md)
     - [Make To-Do App Adaptive]()
diff --git a/book/src/libadwaita.md b/book/src/libadwaita.md
@@ -4,10 +4,10 @@ If you target a certain platform with your GUI, you will want to follow the plat
 With a GTK application, chances are the platform is either [elementary OS](https://elementary.io) or [GNOME](https://www.gnome.org/).
 In this chapter we will discuss how to follow GNOME's [HIG](https://developer.gnome.org/hig/) with [libadwaita](https://gnome.pages.gitlab.gnome.org/libadwaita/doc/1-latest/). 
 
-Libadwaita is a GTK 4 library which:
+Libadwaita is a library augmenting GTK 4 which:
 - provides widgets to better follow GNOME's HIG
-- provides widgets to let application [adapt their UI](https://gnome.pages.gitlab.gnome.org/libadwaita/doc/main/adaptive-layouts.html) between desktop and mobile devices
-- integrates the Adwaita stylesheet
+- provides widgets to let applications [change their layout ](https://gnome.pages.gitlab.gnome.org/libadwaita/doc/main/adaptive-layouts.html) based on the available space
+- integrates the Adwaita [stylesheet](https://gnome.pages.gitlab.gnome.org/libadwaita/doc/main/styles-and-appearance.html)
 - allows runtime recoloring with [named colors](https://gnome.pages.gitlab.gnome.org/libadwaita/doc/main/named-colors.html)
 - adds [API](https://world.pages.gitlab.gnome.org/Rust/libadwaita-rs/stable/latest/docs/libadwaita/struct.StyleManager.html) to support the cross-desktop dark style preference
 
diff --git a/book/src/todo_3.md b/book/src/todo_3.md
@@ -1,4 +1,4 @@
-# Make To-Do App Follow GNOME's HIG
+# Let To-Do App use Libadwaita
 
 Within this chapter we will adapt our To-Do app so that it follows GNOME's [HIG](https://developer.gnome.org/hig/).
 Let's start by installing Libadwaita and adding the `libadwaita` crate to our dependencies as explained in the [previous chapter](libadwaita.html).

Original file line number	Diff line number	Diff line change
`@@ -1,4 +1,4 @@`
`1`		`-# Make To-Do App Follow GNOME's HIG`
	`1`	`+# Let To-Do App use Libadwaita`
`2`	`2`
`3`	`3`	`Within this chapter we will adapt our To-Do app so that it follows GNOME's [HIG](https://developer.gnome.org/hig/).`
`4`	`4`	Let's start by installing Libadwaita and adding the `libadwaita` crate to our dependencies as explained in the [previous chapter](libadwaita.html).