update agent availability

Author: ethanpalm

agent/index.mdx

@@ -5,7 +5,7 @@ keywords: ["automation", "automate", "AI", "autoupdate", "maintenance"]
 ---
 
 <Info>
-  The agent is available on [Pro and Enterprise plans](https://mintlify.com/pricing?ref=agent) for anyone with access to your dashboard.
+  The agent is available on [Enterprise plans](https://mintlify.com/pricing?ref=agent) for anyone with access to your dashboard.
 </Info>
 
 The agent creates pull requests with proposed changes to your documentation based on your prompts. When you send a request to the agent, it references your documentation, connected repositories, and Slack messages to create content that follows technical writing best practices and adheres to the Mintlify schema.