Add WSL install bullet option to downloads page (#3821)

Co-authored-by: Myles Borins <mylesborins@github.com>
Co-authored-by: Rich Trott <rtrott@gmail.com>

Author: 3 people

layouts/partials/download-list.hbs

@@ -8,5 +8,6 @@
     <li><a href="https://unofficial-builds.nodejs.org/download/">{{site.unofficial-builds}}</a></li>
     <li><a href="https://github.com/nodejs/node/blob/master/BUILDING.md#building-nodejs-on-supported-platforms">{{downloads.buildInstructions}}</a></li>
     <li><a href="https://github.com/nodejs/help/wiki/Installation">{{site.download.install-on-linux.text}}</a></li>
+    <li><a href="https://docs.microsoft.com/windows/dev-environment/javascript/nodejs-on-wsl">{{site.download.install-on-wsl.text}}</a></li>
   </ul>
 </section>

locale/en/site.json

@@ -83,6 +83,9 @@
     },
     "install-on-linux": {
       "text": "Installing Node.js via binary archive"
+    },
+    "install-on-wsl": {
+      "text": "Install on Windows Subsystem for Linux (WSL)"
     }
   },
   "docs": {