Remove "the Cody" (#843)

Replace with just "Cody"

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Author: morgangauth

docs/cody/quickstart.mdx

@@ -17,7 +17,7 @@ Before you start, you'll need the following:
 - Free or Pro account via Sourcegraph.com or a Sourcegraph Enterprise account
 - A project open in VS Code
 
-## Getting started with the Cody
+## Getting started with Cody
 
 After installing the extension and connecting to a Sourcegraph instance, you can leverage Cody to use the best LLM and context to understand, write, and fix code. Click the **Cody** icon from the VS Code side activity bar to open the Cody chat panel.