Update README.md

Author: francoiscampbell

README.md

@@ -6,6 +6,7 @@ The current features are to create an Arduino CMake project in one click, and to
 
 For those asking how to upload, you need to specify the serial port in the CMakeLists.txt file. For example:
 set(${CMAKE_PROJECT_NAME}_BOARD uno)
+
 set(${CMAKE_PROJECT_NAME}_PORT /dev/ttys0)
 
 This will create the 'upload' configuration in your Run Configurations and you can click the Run button or use the keyboard shortcut to upload.