v0.0.9

Changelog

• 6dc94ea Add Field: slackChannelID
• 2d93e78 Add -message-template-file
• 3d62fa8 Change to return calendar.event slice
• 28c6032 Extract function
• b788716 Split modules
• af8a61a Update README
• e0cb212 Use --clean instead --rm-dist
• 52b696a Use text/template