docs: update installation guide, remove obsolete GKI kernel patches, and fix documentation links

Author: ravindu644

Documentation/Installation-Android.md

@@ -25,7 +25,7 @@ On the first launch, Droidspaces performs an **Atomic Installation** of the back
 
 You don't need to manually extract rootfs files. The app handles it:
 
-1. **Download a rootfs tarball**: We recommend the official [Linux Containers images](https://images.linuxcontainers.org/images/).
+1. **Download a rootfs tarball**: We recommend using our [official rootfs tarballs](https://github.com/ravindu644/Droidspaces-rootfs-builder/releases/latest) - which are **specifically optimized for Android** - or the official [Linux Containers images](https://images.linuxcontainers.org/images/).
 2. **Open the Containers Tab**: Tap the middle icon in the bottom navigation bar.
 3. **Add a Container**: Tap the **"+"** button at the bottom right.
 4. **Choose your Tarball**: Select the downloaded `.tar.xz` or `.tar.gz` file.
@@ -45,4 +45,5 @@ You can verify your system status at any time:
 ## Next Steps
 
 - [Android App Usage Guide](Usage-Android-App.md) for management details.
+- [GPU Acceleration Guide](GPU-Acceleration.md) to enable hardware-accelerated desktop environments.
 - [Linux CLI Guide](Linux-CLI.md) for expert command-line access.

Documentation/resources/kernel-patches/GKI/03.5.10_or_lower_use_android_abi_padding_for_posix_mqueue copy.patch

@@ -278,7 +278,7 @@ See: [Legacy Kernel Configuration](Documentation/Kernel-Configuration.md#configu
 
 ##### GKI (Modern Kernels)
 Covers kernels: **5.4, 5.10, 5.15, 6.1+**. These kernels require additional steps to handle ABI breakage caused by configuration changes.
-See: [Modern GKI Kernel Configuration](Documentation/Kernel-Configuration.md#configuring-gki-kernels-modern-kernels)
+See: [Modern GKI Kernel Configuration](Documentation/Kernel-Configuration.md#configuring-gki-kernels-the-all-or-nothing-abi-breakage)
 
 **Next Steps for Kernel Support:**
 - **Check automatically**: Use the built-in requirements checker in the Android app (**Settings** -> **Requirements**).