Add link to @mklement0's StackOverflow post

Author: rjmholt

reference/docs-conceptual/components/vscode/vscode-encoding-configuration.md

@@ -331,6 +331,7 @@ you will need to make it the same as your editor encoding to prevent bugs.
 There are a few other nice posts on encoding
 and configuring encoding in PowerShell that are worth a read:
 
+- [@mklement0]'s [summary of encodings for VSCode and PowerShell](https://stackoverflow.com/a/54790355/45375)
 - [@mklement0]'s [summary of PowerShell encoding on StackOverflow](https://stackoverflow.com/questions/40098771/changing-powershells-default-output-encoding-to-utf-8)
 - Previous issues opened on vscode-PowerShell for encoding problems:
   - [#1308](https://github.com/PowerShell/vscode-powershell/issues/1308)