slack update

Author: edieblu

src/posts/2020-04-07-slack-shortcuts/index.mdx

@@ -58,6 +58,10 @@ Quick switcher (sort of like command palette in  VSCode).
 
 Toggle the keyboard shortcuts panel.
 
+- **`/remind [who] [what] [when]`**
+
+To set reminders in Slack.
+
 **Pro tips:**
 
 - I use [Rocket emoji](https://matthewpalmer.net/rocket/) for all my emoji dispensing.