Workflow.md

@@ -21,7 +21,7 @@ the shell scripts defined in ```scr```. Each block
 represents a main task done by one script in```rscripts```. 
 The corresponding `.R` file name is highlight in grey between each stage.
 
-Green blocks represent pre-processing tasks done to the ICOADS data base, 
+Orange blocks represent pre-processing tasks done to the ICOADS data base, 
 in order to:
 
 1. Select data taken only by commercial ships, excluding