Updated Working with CMake (markdown)

Working-with-CMake.md

@@ -12,7 +12,7 @@ add_executable(${PROJECT_NAME} main.c)
 
 target_link_libraries(${PROJECT_NAME} raylib)
 
-# Checks if OSX and links appropriate frameworks (Only required on MacOS)
+# Checks if OSX and links appropriate frameworks (only required on MacOS)
 if (APPLE)
     target_link_libraries(${PROJECT_NAME} "-framework IOKit")
     target_link_libraries(${PROJECT_NAME} "-framework Cocoa")