Update README.md

README.md

@@ -8,7 +8,7 @@ Very fast, header only, C++ logging library. [![Build Status](https://travis-ci.
 
 * Copy the source [folder](https://github.com/gabime/spdlog/tree/master/include/spdlog) to your build tree and use a C++11 compiler.
 
-#### Or use your favourite package manager:
+#### Or use your favorite package manager:
 
 * Ubuntu: `apt-get install libspdlog-dev`
 * Homebrew: `brew install spdlog`