README.markdown: add IRC and mailing list
README.markdown: add IRC and mailing list

Signed-off-by: Brandon Philips <bphilips@suse.de>

Signed-off-by: Reid Beels <34a6389fa1c20ca7e68ded792238b0bb7d4b2bdc@gmail.com>
osbridge/openconferenceware,mynameisfashanu/openconferenceware,osbridge/openconferenceware,ondrocks/openconferenceware,ondrocks/openconferenceware,ondrocks/openconferenceware,mynameisfashanu/openconferenceware,osbridge/openconferenceware,ondrocks/openconferenceware,mynameisfashanu/openconferenceware,osbridge/openconferenceware,mynameisfashanu/openconferenceware