diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1,2 +1,24 @@
 # hale-codegen-example
 Example project using hale-codegen
+
+## Gradle
+
+Generate sources and run tests with
+
+```
+./gradlew check
+```
+
+## Maven
+
+To generate sources Gradle must be used:
+
+```
+./gradlew regenerateSources
+```
+
+Then source can be built and tests run with Maven:
+
+```
+mvn verify
+```