More typos

site/content/post/2019-04-01-understanding-docker-volume-mounts.md

 
 Nothing is copied in, and inside the container the folder will be empty.
 Based on our discoveries with permisions, it's reasonable to assume the
-same will happy with a non-empty volume too:
+same will happen with a non-empty volume too:
 
 {{< highlight console >}}
 $ docker volume create testing