add docker section to readme

README.rst

@@ -137,6 +137,7 @@ Docker
 Using the Dockerfile in the repository:
 
 .. code:: bash
+
     git clone https://github.com/mikf/gallery-dl.git
     cd gallery-dl/
     docker build -t gallery-dl:latest .
@@ -150,6 +151,7 @@ If you gave the container a different tag or are using podman then make sure you
 This will remove the container after every use so you will always have a fresh environment for it to run. If you setup a ci-cd pipeline to autobuild the container you can also add a --pull=newer flag so that when you run it docker will check to see if there is a newer container and download it before running.
 
 .. code:: bash
+    
     docker run --rm  -v $HOME/Downloads/:/gallery-dl/ -v $HOME/.config/gallery-dl/gallery-dl.conf:/etc/gallery-dl.conf -it gallery-dl:latest
 
 You can also add an alias to your shell for "gallery-dl" or create a simple bash script and drop it somewhere in your $PATH to act as a shim for this command.