Don't use pygments highlighting in README.
Don't use pygments highlighting in README.

openxc/openxc-message-format,openxc/openxc-message-format,mgiannikouris/openxc-message-format,mgiannikouris/openxc-message-format,mgiannikouris/openxc-message-format,openxc/openxc-message-format,mgiannikouris/openxc-message-format