docs: fix typo in Coder Desktop Guide (coder#19742)

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Fix a quick typo that was introduced in
coder@8f72538

---------

Co-authored-by: Prebuilds Owner <prebuilds@system>
Co-authored-by: Atif Ali <atif@coder.com>
Co-authored-by: Ethan <39577870+ethanndickson@users.noreply.github.com>

Author: 4 people

docs/user-guides/desktop/index.md

@@ -18,7 +18,7 @@ Coder Desktop provides seamless access to your remote workspaces through a nativ
 
 ## How It Works
 
-**Coder Connect** the primmary component of Coder Desktop creates a secure tunnel to your Coder deployment, allowing you to:
+**Coder Connect**, the primary component of Coder Desktop, creates a secure tunnel to your Coder deployment, allowing you to:
 
 - **Access workspaces directly**: Connect via `workspace-name.coder` hostnames
 - **Use any application**: SSH clients, browsers, IDEs work seamlessly