Add explicit syntax language to code blocks
    
    m2r converts code blocks into ReST code blocks with syntax highlighting.
    Auto-detection of the language does not work correctly, though.
    Explicitly set the language for console, ini, and Python blocks.
    
    Signed-off-by: Christian Heimes <cheimes@redhat.com>
    Reviewed-by: Alexander Bokovoy <abokovoy@redhat.com>