Mark project as deprecated and suggest alternative

Added deprecation notice and recommendation for alternative project.

Author: onethumb

README.md

@@ -1,3 +1,11 @@
+# ⚠️ DEPRECATED - No Longer Maintained
+
+This project is no longer under active development and has been archived.
+
+**We recommend using [crc-fast-rust](https://github.com/awesomized/crc-fast-rust) instead**, which offers better performance, more features, and active maintenance.
+
+---
+
 # crc32fast-lib
 
 [![Tests](https://github.com/awesomized/crc32fast-lib-rust/actions/workflows/tests.yml/badge.svg?branch=main)](https://github.com/awesomized/crc32fast-lib-rust/actions/workflows/tests.yml)
@@ -31,4 +39,4 @@ $checksum = $ffi->hasher_finalize($hasher); // 0x03b4c26d
 
 - [crc32fast](https://github.com/srijs/rust-crc32fast) - The underlying Rust library which implemented this SIMD-accelerated approach.
 - [crc-fast-php](https://github.com/awesomized/crc-fast-php) - An implementation of this library in PHP using FFI.
-- [crc64fast-nvme](https://github.com/awesomized/crc64fast-nvme) - A similar project which computes [CRC-64/NVME](https://reveng.sourceforge.io/crc-catalogue/all.htm#crc.cat.crc-64-nvme) checksums at >20GiB/s, also with a C-compatible shared library.
+- [crc64fast-nvme](https://github.com/awesomized/crc64fast-nvme) - A similar project which computes [CRC-64/NVME](https://reveng.sourceforge.io/crc-catalogue/all.htm#crc.cat.crc-64-nvme) checksums at >20GiB/s, also with a C-compatible shared library.