docs: Fix link to prompting guide (#16973)

Marshall Bowers created

This PR fixes the link to the prompting guide, since it was broken in
048be73b22922af8633cf68cd6a12cd46893ea0d and
4e0124010dcedcade05b1a82a62cda4400a11294.

Release Notes:

- N/A

Change summary

docs/src/assistant/commands.md | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

Detailed changes

docs/src/assistant/commands.md 🔗

@@ -25,7 +25,7 @@ Slash commands enhance the assistant's capabilities. Begin by typing a `/` at th
 
 ## `/default`
 
-Read more about `/default` in the [Prompting: Editing the Default Prompt](./assistant/prompting.md#default-prompt) section.
+Read more about `/default` in the [Prompting: Editing the Default Prompt](./prompting.md#default-prompt) section.
 
 Usage: `/default`