Update README.md

Author: lglglglgy

README.md

@@ -56,6 +56,13 @@ rm mysql-connector-c++-8.1.0-linux-glibc2.28-x86-64bit.tar.gz
 mkdir build
 ./run.sh
 ```
+```
+#Another way (macos linux )
+sudo apt install git gcc g++ cmake libjsoncpp-dev uuid-dev zlib1g-dev openssl libssl-dev
+git clone https://github.com/stepbystepcode/flypen.git --recursive
+cd flypen
+./run.sh
+```
 ## API Documentation
 See [API.md](API.md) for details on APIs for authentication, user management, documents, etc.