Merge branch 'add-textarea' into 'main'

fix doc links

See merge request !11

docs/20_Installation.md

@@ -35,9 +35,9 @@ If you have no AdminLTE page and want to jump in from point zero:
 
 Continue: 
 
-* [Page layout](30_Page_layout.md)
-* [Navigation](40_Navigation.md)
-* [Components](50_Components/index)
+* [Page layout](30_Page/10_Page_layout.md)
+* [Navigation](30_Page/20_Navigation.md)
+* [Components](40_Components/index)
 
 ## Copy needed files only