Add another sentence in the build instructions

README.md

@@ -23,6 +23,8 @@ First you need to make sure you got all the build dependencies:
 * git
 * python 3.6 or later (earlier might work, but untested)
 
+Now, you are ready to build the python library:
+
 1. Run `git clone --recurse-submodules 
    https://gitlab.ida.liu.se/davbe125/s2-python-api.git` in order to get the 
    code and all its dependencies