fixup! docs: use BFGS with BackTracking for param estimation with PDE…

…s tutorial

docs/pages.jl

@@ -12,7 +12,7 @@ pages = ["index.md",
                                 "Defining Systems of PDEs" => "tutorials/systems.md",
                                 "Imposing Constraints" => "tutorials/constraints.md",
                                 "The symbolic_discretize Interface" => "tutorials/low_level.md",
-                                "Optimising Parameters (Solving Inverse Problems)" => "tutorials/param_estim.md",
+                                "Optimising Parameters (Solving Inverse Problems)" => "tutorials/Aparam_estim.md",
                                 "Solving Integro Differential Equations" => "tutorials/integro_diff.md",
                                 "Transfer Learning with Neural Adapter" => "tutorials/neural_adapter.md",
                                 "The Derivative Neural Network Approximation" => "tutorials/derivative_neural_network.md"],