fix Neumann docstring (#126)

jishnub · web-flow · commit 0748b207a340 · 2022-07-29T14:56:08.000+05:30
diff --git a/src/Operators/functionals/Evaluation.jl b/src/Operators/functionals/Evaluation.jl
@@ -245,7 +245,7 @@ At the moment it is implemented as `Dirichlet(sp,1)`.
 Neumann(sp::Space)
 
 """
-`Neumann( is the operator associated with restricting the
+`Neumann()` is the operator associated with restricting the
 normal derivative on the boundary.
 """
 Neumann()
