* Adding title kwarg for plotter class

* Create tutorial for Fourier Feature Embedding
* Update doc for tutorials

docs/source/_rst/_tutorial.rst

@@ -25,6 +25,7 @@ Physics Informed Neural Networks
    Two dimensional Wave problem with hard constraint<tutorials/tutorial3/tutorial.rst>
    Resolution of a 2D Poisson inverse problem<tutorials/tutorial7/tutorial.rst>
    Periodic Boundary Conditions for Helmotz Equation<tutorials/tutorial9/tutorial.rst>
+   Multiscale PDE learning with Fourier Feature Network<tutorials/tutorial13/tutorial.rst>
 
 Neural Operator Learning
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