add example

example/build.sh

@@ -0,0 +1,8 @@
+#!/bin/sh
+
+# shellcheck disable=SC2046
+
+IMAGE="registry.fedy95.com/baseimage-plantuml:latest"
+
+docker pull $IMAGE
+docker run --rm -v $(pwd):/docs -u $(id -u) --entrypoint ./docs/generate.sh $IMAGE

example/generate.sh

@@ -0,0 +1,5 @@
+#!/bin/sh
+
+PLANTUML="java -jar plantuml.jar"
+
+$PLANTUML /docs/puml/*.puml -o "../images"