Update readme about conan for macOS

Author: NexiusTailer

README.md

@@ -58,11 +58,11 @@ cmake --build . --config RelWithDebInfo
 
 ## Building on Mac
 
-If you install conan via brew you must ensure you get the correct version; however, the cmake-conan script will not detect it from the default install location.  You must therefore also alias it elsewhere:
+If you install conan via brew the cmake-conan script will not detect it from the default install location.  You must therefore also alias it elsewhere:
 
 ```bash
-brew install conan@1
-sudo ln -s /usr/local/opt/conan@1/bin/conan /usr/local/bin/conan
+brew install conan
+sudo ln -s /usr/local/opt/conan/bin/conan /usr/local/bin/conan
 cd open.mp
 mkdir build
 cd build