New tutorial

docs/make.jl

@@ -40,6 +40,7 @@ makedocs(
             joinpath("tutorials", "curved_outer_boundary.md"),
             joinpath("tutorials", "spline_curves.md"),
             joinpath("tutorials", "create_edit_curves.md"),
+            joinpath("tutorials", "symmetric_mesh.md"),
         ],
         "Advanced topics & developers" => [
             "Development" => "development.md",

docs/src/tutorials/introduction.md

@@ -80,4 +80,19 @@ Demonstrates how to:
 * Construct and add parametric spline curves.
 * Construct and add a curve from parametric equations.
 * Construct and add straight line segments.
-* Construct and add circular arc segments.
+* Construct and add circular arc segments.
+
+## [Symmetric mesh](@ref)
+
+This tutorial constructs a mesh given a closed chain of outer boundary curves
+that is then reflected over a straight line indicated by the user.
+The result is a mesh that is symmetric with respect to the prescribed
+straight line.
+
+### Synopsis
+
+Demonstrates how to:
+* Indicate a symmetry boundary line.
+* Construct an outer boundary with several connected curves.
+* Add the background grid when an outer boundary curve is present.
+* Visualize an interactive mesh project.