Deleted binary files, improved build script & README

- Deleted binary files (This is considered bad practice to leave binary
  files to the repository. Use releases instead if you really want such
  thing.)
- Improved build script (Added messages & customizable image output path)
- Improved `README.md` file (Depending on the above changes + added
  procedure to build & test)

.gitignore

@@ -0,0 +1,3 @@
+# Ignores binary files
+bin
+

README.md

@@ -1,23 +1,55 @@
 # AtieDOS
+
 A 16 bit operating system made by enthusiasts to enthusiasts with love.
 Current version: 2.10
 
-# How to use it
-The instructions are in /disk-images/README.md.
+# How to Build
+
+## Linux
+
+Run the script file `build-linux.sh` at the root folder of this project.
+You may be required to run `chmod +x ./build-linux.sh` before running the actual script.
+
+## Windows
+
+Run the batch file `build-windows.bat` at the root folder of this project.
+
+# How to Run
+
+## QEMU
+
+We assume that you have the binary path of QEMU set in the `$PATH` environment variable.
+Run `qemu-system-x86_64 -fda bin/floppy.img`.
 
 # Commands
-About, chset, clear, echo, help, pause, prompt, restart, shutdown, stra, write
+
+Here is a list of available commands:
+- `about`: Shows an "about" message to the screen
+- `chset`: Shows a grid of the current VGA character set
+- `clear`: Clears the screen
+- `echo`: Echoes a message
+- `help`: Shows a list of commands
+- `pause`: Pauses the prompt
+- `prompt`: Changes the prompt
+- `restart`: Restarts the computer
+- `shutdown`: Shutdowns the computer
+- `stra`: String command interpreter
 
 # Screenshot
-![AtieDOS 2.10 Screenshot](/atiedos2.10.png)
 
+![AtieDOS 2.10 Screenshot](/atiedos2.10.png)
 
 # What's Stra?
+
 Stra is an esoteric language created by SuperLeaf1995 and me based on Brainfuck. It is used for string manupulation.
 A Stra example: +++.
 
 # How can I collaborate?
+
 Contact me on Discord. I am AteMellow-P#5173. My server: https://discord.gg/26Dfm5e
 
 # Acknowledgements
-Thanks to Midn this operating system works. He made the bootloader. And also I got inspired to made Stra thanks to SuperLeaf1995. Their Discord servers, respectively: https://discord.gg/BX6RBYx, https://discord.gg/ShmmEXP
+
+Thanks to Midn this operating system works. He made the bootloader.
+And also I got inspired to made Stra thanks to SuperLeaf1995.
+Their Discord servers, respectively: https://discord.gg/BX6RBYx, https://discord.gg/ShmmEXP

build-linux.sh

@@ -1,4 +1,29 @@
-# You will need NASM to compile this
+#!/bin/sh
+
+output_image=bin/floppy.img
+
+# TODO: Replace this script with proper `Makefile`.
+# TODO: Perform tool checks before building.
+
+# We check if the `bin` directory exists & create it if that's not the case
+# FIXME: Do out-of-source build instead.
+mkdir -p bin;
+
+# We build the boot sector
+nasm -f bin -o bin/boot.bin bootloader.asm;
+printf " - Built boot sector\n";
+
+# We generate a blank floppy disk image
+dd if=/dev/zero of="$output_image" bs=512 count=2880 status=none;
+printf " - Generated floppy disk image\n";
+
+# We copy the bootsector to the floppy disk image
+dd if=bin/boot.bin of="$output_image" bs=512 count=1 conv=notrunc status=none;
+# We copy the remaining sectors needed to the floppy disk image
+# TODO: Format your disk to FAT12, program the bootsector to load a "KERNEL.BIN" file instead. That way
+#       it'll be much easier to read/write files and folders, and you can even see them on DOS!
+dd if=bin/boot.bin of="$output_image" bs=512 skip=1 seek=1 conv=notrunc status=none;
+printf " - Copied system to floppy disk image\n";
+
+printf "$0: generated floppy disk image to \"$output_image\"\n";
 
-echo This program assumes that you have NASM installed and it's in your path.
-nasm -f bin -o atiedos-2-10.iso bootloader.asm