adding more explicit comments about how to run RACS scripts

diff --git a/README b/README
index 1724bda..6cff7cb 100644
--- a/README
+++ b/README
@@ -218,15 +218,15 @@ located and find the different tools needed during the execution.
 Also, please do not "source" the scripts, they are set to be run as executable scripts,
 ie. execute the scripts in this way,

-	PATHtoRACSrepo/core/../scriptNAME.sh  args
+	PATHtoRACSrepo/core/../scriptNAME.sh  args	# correct way to run RACS scripts

 do *NOT* execute them in this way,

-	. PATHtoRACSrepo/core/../scriptNAME.sh  args
+	. PATHtoRACSrepo/core/../scriptNAME.sh  args	# WRONG: do *NOT* run RACS scripts in this way

 NOR in this way neither,

-	source PATHtoRACSrepo/core/../scriptNAME.sh  args
+	source PATHtoRACSrepo/core/../scriptNAME.sh  args	# WRONG: do *NOT* run RACS scripts in this way

 Our scripts will also try to detect this situation and prevent the user from doing this.
 Due to the modular implementation we designed for RACS, and in order to allow RACS