add assistant URL method

Author: ethanpalm

guides/assistant.mdx

@@ -44,9 +44,9 @@ You can also set usage alerts to receive an email when you reach a certain perce
 
 ## Using the assistant
 
-Users can access the assistant in two ways:
+Users can access the assistant in three ways:
 
-- **Keyboard shortcut**: <kbd>Command</kbd> + <kbd>I</kbd> (<kbd>Ctrl</kbd> + <kbd>I</kbd> on Windows)
+- **Keyboard shortcuts**: <kbd>?</kbd> or <kbd>Command</kbd> + <kbd>I</kbd> (<kbd>Ctrl</kbd> + <kbd>I</kbd> on Windows)
 - **Assistant button** next to the search bar
   <img
     src="/images/assistant/assistant-button-light.png"
@@ -66,6 +66,7 @@ Users can access the assistant in two ways:
     }}
     alt="Search bar and assistant button in dark mode."
   />
+- **URLs** with `?aiassistant=open` appended will open the assistant when the page loads. For example, [https://mintlify.com/docs/?aiassistant=open](https://mintlify.com/docs/?aiassistant=open).
 
 Both methods open a chat panel on the right side of your docs. Users can ask any question and the assistant will search your documentation for an answer. If no relevant information is found, the assistant will respond that it cannot answer the question.