update units of the model

README.md

@@ -59,11 +59,11 @@ Inputs must therefore be prepared using the same AMARO mapping and bead-type ass
 * `energy`: learned effective potential for each system
 * `forces`: negative gradient of the effective potential with respect to bead positions
 
-The model was trained against forces expressed in:
+The model uses units of:
 
 ```text
-kcal mol⁻¹ Å⁻¹
-```
+kcal/mol/Å for forces and Å for coordinates 
+``` 
 
 Because the model was trained using force labels without energy labels, its absolute energy reference is not physically calibrated.