Update README.md

Fix badge url
diff --git a/README.md b/README.md
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@@ -1,4 +1,4 @@
-[![CI](https://github.com/lizhanhui/rocketmq-client-cpp/actions/workflows/main.yml/badge.svg)](https://github.com/lizhanhui/rocketmq-client-cpp/actions/workflows/main.yml)
+[![CI](https://github.com/apache/rocketmq-client-cpp/actions/workflows/main.yml/badge.svg)](https://github.com/lizhanhui/rocketmq-client-cpp/actions/workflows/main.yml)
 ### Introduction
 Apache RocketMQ supports two styles of APIs to acknowledge messages once they are successfully processed.
 
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 2. CLion + Bazel Plugin
    
-   Bazel also has a plugin for CLion.
\ No newline at end of file
+   Bazel also has a plugin for CLion.