Update command from fern deep to fern --dsinghvi

Changed the command syntax from `fern deep` to `fern --dsinghvi` as a global flag option. Updated all references and examples throughout the documentation to reflect this change.

Changes:
- Updated command table entry from `fern deep` to `fern --dsinghvi`
- Updated accordion title and all command examples
- Clarified that additional options can be passed alongside --dsinghvi

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) | Email our co-founder, Deep |
+| [`fern --dsinghvi`](#fern---dsinghvi) | Email our co-founder, Deep |
 
 ## Documentation commands
 
@@ -589,36 +589,36 @@ hideOnThisPage: true
   </CodeBlock>
   </Accordion>
 
-  <Accordion title="fern deep">
+  <Accordion title="fern --dsinghvi">
 
-    Use `fern deep` to send an email directly to Deep, our co-founder. This command is useful when you need assistance, have feedback, or want to reach out to the Fern team.
+    Use `fern --dsinghvi` to send an email directly to Deep, our co-founder. This command is useful when you need assistance, have feedback, or want to reach out to the Fern team.
 
     <CodeBlock title="terminal">
     ```bash
-    fern deep [--subject <subject>] [--message <message>]
+    fern --dsinghvi [--subject <subject>] [--message <message>]
     ```
     </CodeBlock>
 
-    When run without options, the command will open an interactive prompt to compose your message.
+    When run without additional options, the command will open an interactive prompt to compose your message.
 
     ### subject
 
     Use `--subject` to specify the email subject line.
 
     ```bash
-    fern deep --subject "Question about SDK generation"
+    fern --dsinghvi --subject "Question about SDK generation"
     ```
 
     ### message
 
     Use `--message` to include the email body directly in the command.
 
     ```bash
-    fern deep --subject "Feature request" --message "Would love to see support for..."
+    fern --dsinghvi --subject "Feature request" --message "Would love to see support for..."
     ```
 
     <Note>
-    You can also run `fern deep` without any options to compose your email interactively.
+    You can also run `fern --dsinghvi` without any additional options to compose your email interactively.
     </Note>
 
   </Accordion>