From 9372f1855fc40f5fcf29d3e8db41fccd3dc86ebd Mon Sep 17 00:00:00 2001
From: David Seus <david.seus@ians.uni-stuttgart.de>
Date: Mon, 12 Oct 2020 13:59:52 +0200
Subject: [PATCH] work on howto

---
 Usecases/README.md | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/Usecases/README.md b/Usecases/README.md
index 21008e1..c68bda6 100644
--- a/Usecases/README.md
+++ b/Usecases/README.md
@@ -8,3 +8,13 @@ The structure is as follows.
   only the Richards model.
 - [Two-Phase-Richards](./Two-Phase-Richards): domain decomposition examples using a flexible combination of the Richards and two-phase flow model.
 - [Two-Phase-Two-Phase](./Two-Phase-Two-Phase): domain decomposition examples using only the two-phase flow model.
+
+Each of the folders contains subfolders such as `one-patch`, `two-patch` and `multi-patch` holding domain decomposition examples featuriing one-patch, two-patch or multi-patch substructurings. This ordering has been introduced to
+keep things tidy. You may introduce your own ordering, of course.
+
+## How to create your own usecases
+
+In order to create a new usecase, either modify one of the existing ones, or
+copy one of the existing cases into a new file and start working on your own.
+To understand how usecases are set up, let's have a look at the file
+[TP-R-2-patch-test.py](./Two-Phase-Richards/two-patch/TP-R-two-patch-test-case/TP-R-2-patch-test.py).
-- 
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