Document insiders config for MacOS

Author: ammario

README.md

@@ -59,6 +59,15 @@ must specify your settings directories through the `VSCODE_CONFIG_DIR` and
 
 The following will make `sshcode` work with VS Code Insiders:
 
+**MacOS**
+
+```bash
+export VSCODE_CONFIG_DIR="$HOME/.config/Code - Insiders/User"
+export VSCODE_CONFIG_DIR="$HOME/Library/Application Support/Code - Insiders/User"
+```
+
+**Linux**
+
 ```bash
 export VSCODE_CONFIG_DIR="$HOME/.config/Code - Insiders/User"
 export VSCODE_EXTENSIONS_DIR="$HOME/.vscode-insiders/extensions"