Merge pull request #708 from Sitecore/docs/435247

[Docs] Explicitly mention that NodeJS is a third-party technology.

docs/data/routes/docs/client-frameworks/getting-started/quick-start/en.md

@@ -72,6 +72,8 @@ Experimental templates are specialized JSS examples, showing how to do advanced
 * `node-headless-ssr-proxy` This app shows how to configure a Node server to act as a proxy between the browser and Sitecore. [Read more here](/docs/techniques/ssr/headless-mode-ssr).
 * `node-headless-ssr-experience-edge` This app shows how to configure SSR for your JSS application using a Sitecore Experience Edge endpoint.
 
+> NodeJS is a third-party technology that you must configure according to your specific use-case scenarios for Headless mode.
+
 ### Deprecated Templates
 * `sitecore-javascript-renderings` This app shows how to render a JavaScript app as a rendering embedded within a traditional Sitecore MVC site. See [JavaScript Renderings](/docs/techniques/mvc-integration/javascript-rendering) for details. This template is flagged as deprecated as of Oct 2020 because these rendering don't scale well. They satisfy edge-case requirements, and should generally be avoided.
 

docs/data/routes/docs/techniques/ssr/headless-mode-ssr/en.md

@@ -10,6 +10,8 @@ JSS supports headless server-side rendering using any service that supports host
 
 All Sitecore marketing features are supported by this headless mode, including personalization, tracking, multivariate testing, etc.
 
+ > NodeJS is a third-party technology that you must configure according to your specific use-case scenarios for Headless mode.
+
 ## How to use
 
 1. Clone [the JSS samples repository](https://github.com/sitecore/jss) and copy the `samples/node-headless-ssr-proxy` folder to your disk, for example: `c:\jss-headless`.