release v2.0: functions modified because of return. echo 127 cannot be used...

release v2.0: functions modified because of return. echo 127 cannot be used with. Use global variables as explained inside functions

README.md

@@ -56,6 +56,12 @@ Check for updated versions (more recent release tags) at https://gitlab.pasteur.
 
 #### WHAT'S NEW IN
 
+
+## v2.0
+
+function modified because of return. echo $? cannot be used with. Use global variables as explained inside functions
+
+
 ## v1.3.0
 
 test_column_nb_perline_in_file_fun with better writting