docker readme updated

Author: thedavidwhiteside

docker/howto.txt docker/README.md

@@ -1,13 +1,21 @@
-# building image
+Building
+=====
+
 docker build -t starboarder2001/pivportal .
 
-# running
+Running
+=====
+
 docker run -d -p 80:80 -p 443:443 starboarder2001/pivportal
 
-# bash shell
+Bash Shell
+======
+
 docker exec -i -t da426841d88f /bin/bash
 
-# image cleanup
+Be Careful, Cleanup docker images
+======
+
 for img in $(docker ps|awk '{print $1}'|grep -v CONT); do docker stop $img; done
 for img in $(docker ps -a|awk '{print $1}'|grep -v CONT); do docker rm $img; done
 for img in $(docker images|grep -v debian|grep -v IMAGE|awk '{print $3}'); do docker rmi $img; done