@RSS bot was built using Botkit.
Once you add @RSS bot to a channel in your Slack Workspace, it
will listen for any links that are posted.
When a user posts a link, they will be asked if they want to add that link to the RSS Feed for that channel.
Each channel that @RSS bot is in will get it's own RSS Feed.
Any user can get the RSS Feed URL for the current channel by
using the /rssfeed slash command.
Users can ask @RSS bot to leave via the /stoprss
slash command.
