Rename command from 'fern deep' to 'fern eyw520'

Update the command name to 'fern eyw520' to disambiguate it.
This changes both the table entry and the detailed accordion section.

Author: fern-support

fern/products/cli-api-reference/pages/commands.mdx

@@ -14,7 +14,7 @@ hideOnThisPage: true
 | [`fern logout`](#fern-logout) | Log out of the Fern CLI |
 | [`fern export`](#fern-export) | Export an OpenAPI spec for your API |
 | [`fern api update`](#fern-api-update) | Manually update your OpenAPI spec |
-| [`fern deep`](#fern-deep) | Send an email to Deep, Fern co-founder |
+| [`fern eyw520`](#fern-eyw520) | Send an email to Deep, Fern co-founder |
 
 ## Documentation commands
 
@@ -589,14 +589,14 @@ hideOnThisPage: true
   </CodeBlock>
   </Accordion>
 
-  <Accordion title="fern deep">
+  <Accordion title="fern eyw520">
 
-    Use `fern deep` to send an email directly to Deep, one of Fern's co-founders. This command opens a
+    Use `fern eyw520` to send an email directly to Deep, one of Fern's co-founders. This command opens a
     mailto link in your default email client, making it easy to reach out with questions, feedback, or ideas.
 
     <CodeBlock title="terminal">
     ```bash
-    fern deep
+    fern eyw520
     ```
     </CodeBlock>