docs: fix broken link in commands.md (#1248)

Author: WilliamBergamin

docs/content/concepts/commands.md

@@ -8,7 +8,7 @@ Your app can use the `command()` method to listen to incoming slash command requ
 
 Commands must be acknowledged with `ack()` to inform Slack your app has received the request.
 
-There are two ways to respond to slash commands. The first way is to use `say()`, which accepts a string or JSON payload. The second is `respond()` which is a utility for the `response_url`. These are explained in more depth in the [responding to actions](/concepts/action-respond) section.
+There are two ways to respond to slash commands. The first way is to use `say()`, which accepts a string or JSON payload. The second is `respond()` which is a utility for the `response_url`. These are explained in more depth in the [responding to actions](/concepts/actions) section.
 
 When setting up commands within your app configuration, you'll append `/slack/events` to your request URL.
 
@@ -20,4 +20,4 @@ def repeat_text(ack, respond, command):
     # Acknowledge command request
     ack()
     respond(f"{command['text']}")
-```
+```