Update prompts.mdx

fern/docs/pages/models/prompts.mdx

@@ -12,11 +12,11 @@ import { Callout } from "nextra-theme-docs";
 <Callout type="info" emoji="ℹ️">
   **Note on Chat model prompts** - For your convenience, we automatically apply
   the right prompt formats when you supply a `messages` object to our
-  `/chat/completions` endpoint or via the `pg.Chat.create()` method in the
+  `/chat/completions` endpoint or via the `client.chat.completions.create()` method in the
   Python client. You don't have to add in special tokens or apply the below
   prompt formats as this will duplicate the formatting. However, if you want to
   use chat-tuned models in the `/completions` endpoint or via the
-  `pg.Completions.create()` method, you should apply the appropriate one of the
+  `client.completions.create()` method, you should apply the appropriate one of the
   below prompt formats.
 </Callout>