From a88bcf02ab4b826a9a00b3c749a73d408e8b58ab Mon Sep 17 00:00:00 2001
From: Raphael Michel <michel@rami.io>
Date: Wed, 3 Aug 2022 14:42:51 +0200
Subject: [PATCH] Add instructions on how to validate with Mustang

---
 README.rst | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/README.rst b/README.rst
index 50e00d1..4666ec5 100644
--- a/README.rst
+++ b/README.rst
@@ -122,6 +122,14 @@ To automatically sort your Imports as required by CI::
     pip install isort
     isort -rc .
 
+To validate files using mustang::
+
+    git clone https://github.com/ZUGFeRD/mustangproject.git
+    cd mustangproject
+    git checkout core-2.5.1
+    ./mvnw clean package
+    java -jar Mustang-CLI/target/Mustang-CLI-2.5.1-SNAPSHOT.jar --action validate --source invoice.pdf
+
 
 Credits and License
 -------------------
-- 
2.47.3