Update README.md

README.md

@@ -8,7 +8,7 @@ This project is focused on extracting information from images of an ion trap.
 - **calibrate.py**: Run this script to calibrate the distance factor used for dark ions detection. Run preferably when there are no dark ions present.
 
 
-To change the region of interest where the image analysis takes place, either:
+To change the region of interest where the ions are located, either:
 
 - Edit the top-left and bottom-right coordinates of the region of interest manually under settings.py --> REGION