Update command from 'fern deep' to 'fern dsinghvi'

Rename the command to use the full name 'dsinghvi' instead of 'deep'
throughout the CLI reference documentation, including all examples
and descriptions.

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 co-founder Deep |
+| [`fern dsinghvi`](#fern-dsinghvi) | Send an email to co-founder Dsinghvi |
 
 ## Documentation commands
 
@@ -589,14 +589,14 @@ hideOnThisPage: true
   </CodeBlock>
   </Accordion>
 
-  <Accordion title="fern deep">
+  <Accordion title="fern dsinghvi">
 
-    Use `fern deep` to send an email directly to Deep, Fern's co-founder. This command opens a channel
+    Use `fern dsinghvi` to send an email directly to Dsinghvi, Fern's co-founder. This command opens a channel
     for direct communication about feature requests, bug reports, or just to say hello.
 
     <CodeBlock title="terminal">
     ```bash
-    fern deep [--subject <subject>] [--message <message>]
+    fern dsinghvi [--subject <subject>] [--message <message>]
     ```
     </CodeBlock>
 
@@ -607,19 +607,19 @@ hideOnThisPage: true
     Use `--subject` to specify the email subject line.
 
     ```bash
-    fern deep --subject "Feature request: TypeScript 5.0 support"
+    fern dsinghvi --subject "Feature request: TypeScript 5.0 support"
     ```
 
     ### message
 
     Use `--message` to include the email body directly from the command line.
 
     ```bash
-    fern deep --subject "Quick question" --message "Is there a way to customize the SDK output directory?"
+    fern dsinghvi --subject "Quick question" --message "Is there a way to customize the SDK output directory?"
     ```
 
     <Tip>
-    Deep reads every email personally and typically responds within 24 hours. For urgent issues,
+    Dsinghvi reads every email personally and typically responds within 24 hours. For urgent issues,
     consider also posting in the [Fern community Discord](https://discord.gg/fern).
     </Tip>