add CI status badge to README

Author: kzhdev

CHANGELOG

@@ -2,6 +2,7 @@
 - Fixed size calculation in shared memory mapping to use reserved_info struct
 - Added server-client shared memory test case
 - Added GitHub CI workflow for automated testing across Ubuntu, Windows, and macOS
+- Added CI status badge to README
 
 # v1.0.2.1 - 2025-10-01
 - Fixed buffer wrap read logic to properly retry from wrapped position

README.md

@@ -1,5 +1,7 @@
 # SlickQueue
 
+[![CI](https://github.com/SlickQuant/slick_queue/actions/workflows/ci.yml/badge.svg)](https://github.com/SlickQuant/slick_queue/actions/workflows/ci.yml)
+
 SlickQueue is a header-only C++ library that provides a lock-free,
 multi-producer multi-consumer (MPMC) queue built on a ring buffer. It is
 designed for high throughput concurrent messaging and can optionally operate