updated NodeJS macOS installation (contributing)

docz/docs/09-miscellany/05-contributing.md

@@ -285,14 +285,19 @@ D) Install NodeJS.
 Open [the official NodeJS site](https://nodejs.org/en/download/) with a web
 browser.
 
-Adjust the dropdowns as follows:
-- "Get Node.js®": Select the LTS version (currently `"v22.14.0 (LTS)"`)
-- "for": Select `"macOS"`
+![NodeJS macOS Installation](pathname:///contributing/nodejs_macos_installation.png)
+
+Select the following dropdown options as follows:
+
+1. "Get Node.js®": Select the LTS version (currently `"v22.14.0 (LTS)"`)
 
 Then scroll down to `"Or get  a prebuilt  Node.js® for"` section and:
-- Select `"macOS"` from the first dropdown
-- Select `"ARM64"` for Apple Silicon Macs or `"x64"` for Intel Macs from the second dropdown
-- Click the green <span style={{backgroundColor: '#417E38', padding: '0.4rem 0.4rem', borderRadius:
+
+2. Select `"macOS"` from the first dropdown
+
+3. Select `"ARM64"` for Apple Silicon Macs or `"x64"` for Intel Macs from the second dropdown
+
+4. Click the green <span style={{backgroundColor: '#417E38', padding: '0.4rem 0.4rem', borderRadius:
 '0.25rem', color: 'white'}}>macOS Installer (.pkg)</span> button to download the installer
 
 After the download finishes, open the package and follow the steps to install NodeJS.