Add comment and instruction about allure and the JRE dependency

Signed-off-by: PatStLouis <[email protected]>

Author: PatStLouis

Dockerfile

@@ -3,6 +3,12 @@ FROM node:18
 WORKDIR /test-suite
 
 RUN apt update
+
+# JRE is a dependency for the reporting software Allure
+# By including this dependency, a user could overwrite the entrypoint with
+# npx mocha tests/ && npx allure serve
+# when invoking the image and the container will serve a 
+# browsable report once the tests are finished
 RUN apt install default-jre -y
 
 COPY package.json ./