docs: update documentation

docs/src/content/docs/en/features/backorder/supported-registrar.mdx

@@ -1,5 +1,5 @@
 ---
-title: Supported registrar
+title: Supported registrar list
 ---
 
 import {LinkButton} from '@astrojs/starlight/components';

docs/src/content/docs/en/features/index.md

@@ -1,24 +0,0 @@
----
-title: Getting started
----
-
-On this page, you'll find a step-by-step guide to getting started with Domain Watchdog and exploring its features.
-
-:::note
-Depending on the configuration of the instance on which you're performing these actions, your options may be
-limited.
-:::
-
-The sidebar menu on the left allows you to quickly navigate between the pages, which are described below.
-
-## Create an account
-
-If your configuration allows, you can create an account directly in the interface. First, click the registration button
-and enter an email address and password.
-A confirmation email will be sent to you to verify your email address.
-
-## Search for a domain name
-
-## Create a Watchlist
-
-## Create a Connector

docs/src/content/docs/en/features/index.mdx

@@ -0,0 +1,101 @@
+---
+title: Getting started
+description: Step-by-step guide to creating an account, searching domains, tracking changes, and enabling auto-purchase with Connectors.
+---
+
+import {LinkCard} from '@astrojs/starlight/components';
+
+On this page, you'll find a step-by-step guide to getting started with **Domain Watchdog** and exploring its main
+features. The sidebar menu on the left allows you to quickly navigate between all documentation sections.
+
+:::note
+Depending on the configuration of the instance on which you're performing these actions, some options may be limited or
+hidden.
+:::
+
+---
+
+## Create an account
+
+If your instance allows user registration, you can create an account directly from the interface.
+
+![User registration](../../../../assets/images/user-register.png)
+
+1. Click the **Register** button.
+2. Enter your **email address** and **password**.
+3. A confirmation email will be sent to verify your address.
+
+After confirming your email, you can log in and start using all available features.
+
+---
+
+## Search for a domain name
+
+Domain Watchdog uses the **RDAP protocol**, the modern replacement for WHOIS, to retrieve accurate information about
+domain names.
+
+![Search for a domain name](../../../../assets/images/search-domain.png)
+
+To read the documentation related to domain name search, please click on the link below.
+
+<LinkCard title="Domain search"
+          description="Obtain the details of a domain name registration and the history of observed events"
+          href="../features/search/domain-search"/>
+
+---
+
+## Create a Watchlist
+
+A **Watchlist** is a collection of domain names, triggers, and optionally an API Connector.  
+It allows you to:
+- monitor domain status changes,
+- receive notifications (email or webhook: Slack, Mattermost, Discord, etc.),
+- optionally auto-purchase a domain when it expires.
+
+![Create a Watchlist](../../../../assets/images/create-watchlist.png)
+
+To read the documentation related to the Watchlist, please click on the link below.
+
+<LinkCard title="Watchlist"
+          description="Add domain names to aWatchlist to track them, be notified of any changes, and potentially buy them when they expire"
+          href="../features/tracking/watchlist"/>
+
+### Watchlist notifications
+
+When a domain changes state, you’ll automatically receive a notification.  
+You can also export domain events as **iCalendar** feeds.
+
+---
+
+## Create a Connector
+
+A **Connector** is used to automatically order (backorder) a domain name using its provider’s API.
+
+![Create a Connector](../../../../assets/images/create-connector.png)
+
+To read the documentation related to Connector, please click on the link below.
+
+<LinkCard title="Connector"
+          description="Create a Connector to enable domain name purchases by linking it to your Watchlists"
+          href="../features/backorder/connector"/>
+
+### Supported registrar list
+
+<LinkCard title="Supported registrar list"
+          description="List of registrars supported by this project"
+          href="../features/backorder/supported-registrar"/>
+
+---
+
+### Tracking table
+
+The Tracking table page displays a list of all the domain names you monitor via your Watchlists.
+This list is ordered, meaning the domain names are arranged according to their estimated deletion date.
+
+![Tracking table](../../../../assets/images/tracking-table.png)
+
+To read the documentation related to the Tracking table, please click on the link below.
+
+<LinkCard title="Tracking table"
+          description="List all the domains you're monitoring in your Watchlist and track the status of those domains"
+          href="../features/tracking/tracking-table"/>