add main section overviews; subsection index cards (#440)

* remove use/user-guides

* address manage assets capitalization

* update homepage link to User Guides

* Update transak.md

* add main section overviews, and subsection cards

docs/learn/index.md

@@ -3,7 +3,7 @@ Greetings! We are delighted to welcome you to the educational segment of the Ast
 
 Whether you're an aspiring developer or a newcomer to the world of blockchain, this section provides comprehensive insights into the inner workings of Astar network. Starting from the basics such as accounts, we delve into the intricate protocols that fuel the functionality of Astar.
 
-To expand your knowledge on building applications or utilizing various toolson Astar, we recommend exploring the build section. 
+To expand your knowledge about building applications or utilizing various tools on Astar, we recommend exploring the [build](/docs/build) section. 
 
 ## Foundations
 [About Astar](/docs/learn/astar)
@@ -23,6 +23,6 @@ To expand your knowledge on building applications or utilizing various toolson A
 
 [Networks](/docs/learn/networks)
 
-[Interoperability](/docs/learn/interoperability/xcm)
+[Multichain Interoperability](/docs/learn/interoperability/xcm)
 
 [Proxy Accounts](/docs/learn/Proxies.md)

docs/tutorials/index.md

@@ -1,2 +1,12 @@
 # Tutorials
 
+## Overview
+
+In the following sections you will find hands-on tutorials covering various aspects of Astar Network. 
+
+```mdx-code-block
+import DocCardList from '@theme/DocCardList';
+import {useCurrentSidebarCategory} from '@docusaurus/theme-common';
+
+<DocCardList items={useCurrentSidebarCategory().items}/>
+```

docs/use/index.md

@@ -1,2 +1,12 @@
 # Use
 
+## Overview
+
+In the following sections you will find all the help you need to create & manage accounts, and transact on Astar Network.
+
+```mdx-code-block
+import DocCardList from '@theme/DocCardList';
+import {useCurrentSidebarCategory} from '@docusaurus/theme-common';
+
+<DocCardList items={useCurrentSidebarCategory().items}/>
+```