Restructure README: features, per-platform prereqs, then install

README.md

@@ -2,6 +2,15 @@
 
 Cross-platform Avalonia UI app for bulk Active Directory operations from a CSV file.
 
+## Features
+
+- Load a CSV with any column structure
+- Auto-discover the AD domain and domain controller via DNS (click **Discover** or runs on startup)
+- Built-in port/connectivity health check (DNS, TCP 389, TCP 636, LDAP bind, LDAPS bind)
+- Dry-run mode to validate before making changes
+- Actions: enable, disable, add/remove from group, set/force password change
+- LDAP 389 for normal edits; LDAPS 636 required for password resets
+
 ## Prerequisites
 
 - [.NET 8 SDK](https://dotnet.microsoft.com/download/dotnet/8.0)
@@ -31,7 +40,7 @@ sudo apt install dotnet-sdk-8.0
 brew install dotnet-sdk-8.0
 ```
 
-## Build & Run
+## Install & Run
 
 ```bash
 git clone https://gitea.mikisoq.cc/mikisoq/ADBulk.git
@@ -43,15 +52,6 @@ dotnet run
 
 On Windows, you can also open the folder in Visual Studio and run from there.
 
-## Features
-
-- Load a CSV with any column structure
-- Auto-discover the AD domain and domain controller via DNS (click **Discover** or runs on startup)
-- Supports LDAP 389 (normal edits) and LDAPS 636 (password resets)
-- Built-in port/connectivity health check
-- Dry-run mode to validate before making changes
-- Actions: enable, disable, add/remove from group, set/force password change
-
 ## Quick start
 
 1. Launch the app
@@ -73,14 +73,12 @@ On Windows, you can also open the folder in Visual Studio and run from there.
 
 ### Linux
 
-Place your root CA certificate and run:
-
 ```bash
-# Arch / CachyOS
+# Arch / CachyOS — place root CA and run:
 sudo cp your-root-ca.crt /etc/ca-certificates/trust-source/anchors/
 sudo trust extract-compat
 
-# Ubuntu / Debian
+# Ubuntu / Debian:
 sudo cp your-root-ca.crt /usr/local/share/ca-certificates/
 sudo update-ca-certificates
 ```