markdown: reword 'podman-inspect' to properly explain '--size'
Reword the man page to clarify that the '--size' option displays
the container size in addition to the normal output.
@@ -36,7 +36,7 @@ The latest option is not supported on the remote client or when invoked as *podm
**--size**, **-s**
-Display the total file size if the type is a container
+In addition to normal output, display the total file size if the type is a container.
## EXAMPLE
