Added disclaimer + release tag

Author: chrisdedman

README.md

@@ -1,28 +1,36 @@
 # AstraKernel ~ A minimal ARM kernel for QEMU
 
-AstraKernel is a minimal experimental kernel written in C and ARM assembly, designed to run on 
-QEMU's VersatileAB (Cortex-A8) emulated platform. This project currently 
-demonstrates how to bootstrap a system, set up the stack, zero the `.bss` 
-section, and perform basic UART output (printing text to the serial console).
+[![GitHub release (including pre-releases)](https://img.shields.io/github/v/release/sandbox-science/AstraKernel?include_prereleases)](https://github.com/sandbox-science/AstraKernel/releases)
+
+AstraKernel is a minimal experimental kernel written in modern C and ARM assembly, designed to run on
+**QEMU's VersatileAB (Cortex-A8)** platform. The purpose is educational, showing the fundamental
+steps of bringing up a bare-metal system, from low-level bootstrapping to higher-level interactive features
+to explore kernel development concepts.
 
 ```bash
 ========================================
   AstraKernel  v0.1.0
-  Built May 15 2025 at 22:58:58
+  Built Aug 27 2025 at 12:56:35
 ========================================
 
   CPU: Cortex-A8 @ 200MHz (simulated)
   RAM: 128MB SDRAM at 0x00000000
 
 Welcome to your own little Astra world!
 Type away, explore, have fun.
+
+AstraKernel is running...
+Press Ctrl-A and then X to exit QEMU.
+
+AstraKernel >
 ```
 
 ## Features so far
 
-- Simple ARM assembly startup code
-- Memory-mapped UART output for terminal messages
-- Runs under QEMU
+- [x] **Bootstrapping**: stack setup, BSS clearing, entry into the kernel main.
+- [x] **UART I/O**: putc/puts, getc/getline, basic shell loop.
+- [x] **Vector Table**: Define vector table for exceptions/interrupts.
+- [x] **Basic Timer Interrupt**: Configure one hardware timer, hook its interrupt to increment a "tick" counter.
 
 ## Building
 
@@ -34,7 +42,7 @@ Make sure you have an ARM cross-compiler installed (e.g., `arm-none-eabi-gcc`) a
 make
 ```
 
-Developers also have the option to run the kernel with custom flags such as:
+Developers also have the option to run the kernel with custom flags, such as:
 ```sh
 make KFLAGS="-USE_KTESTS -MY_DEFFLAG"
 ```
@@ -46,7 +54,7 @@ make KFLAGS="-USE_KTESTS -MY_DEFFLAG"
 
 ### Docker Build
 
-If you have docker installed, you can also run AstraKernel through a docker container:
+If you have Docker installed, you can also run AstraKernel through a Docker container:
 
 ```sh
 make docker
@@ -67,6 +75,18 @@ For more details about this kernel, refer to the [AstraKernel Documentation](htt
 > 
 > The manual is a work in progress and may not cover all features yet.
 
+## Disclaimer
+
+AstraKernel is an **educational project** created to demonstrate operating system concepts.
+It is currently in version ![GitHub release (latest by date including pre-releases)](https://img.shields.io/github/v/release/sandbox-science/AstraKernel?include_prereleases&label=&style=flat) and should be considered experimental software.
+
+- **Not Production-Ready**: AstraKernel is not stable, secure, or suitable for production environments.
+- **Educational Use Only**: The project is provided for learning, research, and experimentation purposes.
+- **No Warranty**: AstraKernel is distributed on an “as is” basis, without warranties or conditions of any kind, express or implied.
+- **Limitation of Liability**: The authors and contributors assume no responsibility or liability for any damages, data loss, or issues arising from the use of AstraKernel.
+
+By using AstraKernel, you acknowledge that you understand these limitations.
+
 ## License
 
 This project is licensed under the GNU GENERAL PUBLIC License. See the [LICENSE](LICENSE) file for details.