Add the first assignment for nginx

[refs #3be405c411fe]

Author: jfahrer

nginx/assignment1.md

@@ -0,0 +1,22 @@
+## Base image (FROM)
+debian:buster-slim
+
+## Run the following commands (RUN)
+apt-get update
+apt-get install -y nginx
+
+## Startup command (CMD)
+nginx -g 'daemon off;'
+
+## Build the image
+* Tag it with <docker_id>/nginx:latest
+* Push it to Docker Hub
+
+## Verify the image works
+* Start a container
+* Expose port 80
+* Use a browser
+
+## Stop the container
+docker container kill <CONTAINER NAME>
+docker container ls