documentation refactoring

docs/distros/debian.md

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+# Debian
+
+Debian is a free, open-source Linux distribution known for its stability, security, and foundational role in the Linux ecosystem. It’s developed by a global community and serves as the base for many other popular distros, including Ubuntu and proxmox pve.
+
+**🧱 Core Features:**
+
+- Package management: Uses APT and dpkg for installing and updating software.
+- Supported architectures: Includes x86 (amd64), ARM, PowerPC, RISC-V, and more.
+- Kernel: Primarily uses the Linux kernel, but also supports alternatives like Hurd and kFreeBSD in experimental branches.
+- User interface: Default is GNOME, but supports KDE, Xfce, LXDE, Cinnamon, MATE, and others.
+
+## Package Manager
+
+```bash
+apt update -y
+apt upgrade -y 
+apt autoremove -y
+```