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README.md

@@ -8,7 +8,7 @@ Akvo is developed by several teams including the University of Utah.
 Akvo currently has preprocessing capabilities for VistaClara GMR data. 
 
 ## Benefits 
-Processing steps are retained and logged in the processed file header.
+Processing steps are retained and logged in the processed file header, which is written in YAML. 
 
 ## Languages
 Akvo is written primarily in Python 3, but has components written in R as well. The graphical user unterface is written in PyQt5.  An interface to modelling software written in C++ is in development.