Update README.md

Author: mauriziocingi

README.md

@@ -4,7 +4,7 @@ Works with both Python 2.7 and 3.x
 
 ## epamodule
 A Python module that permits Epanet toolkit library calls from pure Python programs.
-Dropped inteface generated by ctypesgen from epanet2.h  (beacause not working with 2.x and 3.x)
+Dropped interface generated by ctypesgen from epanet2.h  (beacause not working with 2.x and 3.x)
 
 Example2.py is example2.c from toolkit help rewritten in Python as example of epamodule use.