Merge pull request #12 from danopz/debain

Thanks @danopz, spellcheck FTW!

dockerfile-sample-1/Dockerfile

@@ -5,7 +5,7 @@
 #       describes
 FROM debian:stretch-slim
 # all images must have a FROM
-# usually from a minimal Linux distribution like debain or (even better) alpine
+# usually from a minimal Linux distribution like debian or (even better) alpine
 # if you truly want to start with an empty container, use FROM scratch
 
 ENV NGINX_VERSION 1.13.6-1~stretch
@@ -51,4 +51,4 @@ EXPOSE 80 443
 
 CMD ["nginx", "-g", "daemon off;"]
 # required: run this command when container is launched
-# only one CMD allowed, so if there are mulitple, last one wins
+# only one CMD allowed, so if there are multiple, last one wins