diff --git a/get-started/part2.md b/get-started/part2.md
index cfa543a7a1..eaf448db08 100644
--- a/get-started/part2.md
+++ b/get-started/part2.md
@@ -92,16 +92,16 @@ The `node-bulletin-board` project is a simple bulletin board application, writte
 Take a look at the file called `Dockerfile` in the bulletin board application. Dockerfiles describe how to assemble a private filesystem for a container, and can also contain some metadata describing how to run a container based on this image. The bulletin board app Dockerfile looks like this:
 
 ```dockerfile
-# Use the official image as a parent image
+# Use the official image as a parent image.
 FROM node:current-slim
 
-# Set the working directory
+# Set the working directory.
 WORKDIR /usr/src/app
 
-# Copy the file from your host to your current location
+# Copy the file from your host to your current location.
 COPY package.json .
 
-# Run the command inside your image filesystem
+# Run the command inside your image filesystem.
 RUN npm install
 
 # Inform Docker that the container is listening on the specified port at runtime.