Add README for macho-diff tool

README.md

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+# macho-diff
+
+A command-line tool for visualizing instruction-level differences between Mach-O binaries. It uses `LIEF` to parse the Mach-O structure and `capstone` to disassemble and compare functions byte-by-byte and instruction-by-instruction.
+
+## Features
+
+- **Architecture Support:** Supports ARM64, ARM, X86_64, and X86.
+- **Function Checksums:** Quickly identifies modified functions via SHA-256 byte hashing.
+- **Instruction-Level Diff:** Identifies the exact mnemonic and operand differences between the original and patched binaries directly in the CLI.
+- **Batch Patches:** Automatically generates batch hexadecimal patches which ensure unique byte patterns for safe find-and-replace patching across binaries. The batch notes output is fully compatible with [Amimod](https://github.com/EshayDev/Amimod).
+
+## Installation
+
+Assuming you are using [`uv`](https://github.com/astral-sh/uv) (or standard `pip`):
+
+```bash
+git clone https://NohamR/macho-diff && cd macho-diff
+
+uv sync
+```
+
+## Usage
+
+Run the tool by passing the source and patched Mach-O binaries:
+
+```bash
+uv run macho-diff <source_binary> <patched_binary>
+```
+
+```bash
+uv run macho-diff <source_binary> <patched_binary> -b
+```