remove trailing spaces

README.md

@@ -5,7 +5,7 @@
 [![Coverage Status](https://coveralls.io/repos/github/tschm/cradle/badge.png?branch=main)](https://coveralls.io/github/tschm/cradle?branch=main)
 [![ci](https://github.com/tschm/cradle/actions/workflows/ci.yml/badge.svg)](https://github.com/tschm/cradle/actions/workflows/ci.yml)
 
-qcradle is a command line tool to create repos based on a group of templates. 
+qcradle is a command line tool to create repos based on a group of templates.
 It has been created
 to accelerate, simplify and harmonize the development
 of experiments and quantitative strategies