Add more links to the code gallery git repo.

diff --git a/README.md b/README.md
index d63ea5b2fe9f4f09a4b4f51373036a7b75822c21..69e41edf3308e177ae8f7a7f2dfaf74a1f0c7d20 100644 (file)
--- a/README.md
+++ b/README.md
@@ -1,5 +1,11 @@
 # code-gallery
-A collection of codes based on [deal.II](https://www.dealii.org) contributed by `deal.II` users
+The [code gallery](https://dealii.org/developer/doxygen/deal.II/CodeGallery.html) is a collection of codes based on
+[deal.II](https://www.dealii.org) contributed by `deal.II`
+users. These codes typically solve problems more complicated than
+those in the deal.II tutorial. Their intention is to solve actual
+problems, rather than demonstrate particular aspects of deal.II.
+The code gallery is, however, cross linked from the
+[set of tutorials](https://dealii.org/developer/doxygen/deal.II/Tutorial.html#TutorialConnectionGraph).
 
 ### Building the documentation