Linkifiers make it easy to refer to issues or tickets in third party issue trackers, like GitHub, Salesforce, Zendesk, and others. For instance, you can add a linkifier that automatically turns #2468 into a link to https://github.com/zulip/zulip/issues/2468. | If the pattern appears in a topic, Zulip adds an Open () button to the right of the topic in the message recipient bar that links to the appropriate URL. | If you have any trouble creating the linkifiers you want, please contact Zulip s...