revert doc title

Author: ArnoStrouwen

docs/pages.jl

@@ -1,6 +1,7 @@
 # Put in a separate page so it can be used by SciMLDocs.jl
 
-pages = ["index.md",
+pages = [
+    "Overview" => "index.md",
     "Tutorials" => Any["tutorials/nonlinear.md",
                        "tutorials/iterator_interface.md"],
     "Basics" => Any["basics/NonlinearProblem.md",

docs/src/index.md

@@ -1,6 +1,6 @@
-# Overview
+# NonlinearSolve.jl: High-Performance Unified Nonlinear Solvers
 
-NonlinearSolve.jl is a high-performance unified interface for the nonlinear solving packages of
+NonlinearSolve.jl is a unified interface for the nonlinear solving packages of
 Julia. It includes its own high-performance nonlinear solvers which include the
 ability to swap out to fast direct and iterative linear solvers, along with the
 ability to use sparse automatic differentiation for Jacobian construction and