docs: update deployers table with ngx-deploy-npm (angular#33269)

ngx-deploy-npm is a custom deployer to publish Angular libraries to NPM

PR Close angular#33269

aio/content/guide/deployment.md

@@ -79,6 +79,7 @@ In the table below, you can find a list of packages which implement deployment f
 | [Now](https://zeit.co/now)                                    | [`@zeit/ng-deploy`](https://npmjs.org/package/@zeit/ng-deploy)                 |
 | [Netlify](https://www.netlify.com/)                           | [`@netlify-builder/deploy`](https://npmjs.org/package/@netlify-builder/deploy) |
 | [GitHub pages](https://pages.github.com/)                     | [`angular-cli-ghpages`](https://npmjs.org/package/angular-cli-ghpages)         |
+| [NPM](https://npmjs.com/)                                     | [`ngx-deploy-npm`](https://npmjs.org/package/ngx-deploy-npm)                   |
 
 If you're deploying to a self-managed server or there's no builder for your favorite cloud platform, you can either create a builder that allows you to use the `ng deploy` command, or read through this guide to learn how to manually deploy your app.