Update cuqi/pde/_pde.py

Co-authored-by: Jakob Sauer Jørgensen <[email protected]>

Author: amal-ghamdi

cuqi/pde/_pde.py

@@ -387,7 +387,7 @@ def interpolate_on_observed_domain(self, solution):
         return solution_obs
 
     def observe(self, solution):
-        """Apply observation operator to the solution. This include
+        """Apply observation operator to the solution. This includes
         interpolation to observation points (if different from the
         solution grid) then applying the observation map (if provided)."""