chore: Update README to indicate kernel modules are now optional

Author: TibixDev

README.md

@@ -51,7 +51,7 @@ Before running WinBoat, ensure your system meets the following requirements:
   - [Setup Instructions](https://docs.docker.com/engine/install/linux-postinstall/#manage-docker-as-a-non-root-user)
 - **FreeRDP**: Required for remote desktop connection (Please make sure you have **Version 3.x.x** with sound support included)
   - [Installation Guide](https://github.com/FreeRDP/FreeRDP/wiki/PreBuilds)
-- **Kernel Modules**: `iptables` and `iptable_nat` modules must be loaded
+- [OPTIONAL] **Kernel Modules**: The `iptables` / `nftables` and `iptable_nat` kernel modules can be loaded for network autodiscovery and better shared filesystem performance, but this is not obligatory in newer versions of WinBoat
   - [Module loading instructions](https://rentry.org/rmfq2e5e)
 
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