Put the documentation into the standard form

Author: ChrisRackauckas

docs/pages.jl

@@ -1,11 +1,13 @@
 pages = ["index.md",
+    "getting_started.md",
     "Tutorials" => [
-        "tutorials/intro.md",
-        "tutorials/rosenbrock.md",
         "tutorials/minibatch.md",
         "tutorials/symbolic.md",
         "tutorials/constraints.md",
     ],
+    "Examples" => [
+        "examples/rosenbrock.md",
+    ],
     "Basics" => [
         "API/optimization_problem.md",
         "API/optimization_function.md",

docs/src/tutorials/rosenbrock.md renamed to docs/src/examples/rosenbrock.md

@@ -1,6 +1,6 @@
 # Solving the Rosenbrock Problem in >10 Ways
 
-This tutorial is a demonstration of many different solvers to demonstrate the
+This example is a demonstration of many different solvers to demonstrate the
 flexibility of Optimization.jl. This is a gauntlet of many solvers to get a feel
 for common workflows of the package and give copy-pastable starting points.
 

docs/src/tutorials/intro.md renamed to docs/src/getting_started.md

@@ -1,4 +1,4 @@
-# Basic usage
+# Getting Started with Optimization in Julia
 
 In this tutorial, we introduce the basics of Optimization.jl by showing
 how to easily mix local optimizers from Optim.jl and global optimizers