fix: response to review comment

- https://github.com/MicrosoftDocs/PowerShell-Docs/pull/12005/files#r2044504598

Author: changeworld

reference/docs-conceptual/community/contributing/product-terminology.md

@@ -111,7 +111,7 @@ Guidelines
 
 - First mention - use the full name
 - Subsequent mentions - you can use "VS Code"
-- Never use "VS Code"
+- Never use "VSCode"
 
 ### PowerShell Extension for Visual Studio Code