diff --git a/Dockerfile b/Dockerfile
index 80ca899..7595149 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -1,6 +1,10 @@
 FROM node:lts-alpine
 
+# add project files to /app
 ADD ./ /app
 WORKDIR /app
+
+# install node dependencies
 RUN npm install
+
 EXPOSE 8080