Update opencsp/common/lib/cv/OpticalFlow.py

Co-authored-by: Ben Bean <[email protected]>

opencsp/common/lib/cv/OpticalFlow.py

@@ -667,7 +667,7 @@ def save(self, dir: str, name_ext="", overwrite=False):
     @classmethod
     def from_file(cls, dir: str, name_ext: str, error_on_not_exist=True):
         """
-        Creates an instance of the class by loading magnitude and angle matrices from a file.
+        Creates an instance of the class by loading magnitude and angle matrices from a file generated from the :py:meth:`save` method.
 
         Parameters
         ----------