Document getAuthToken for web based login (#2418)

src/docs/src/getting-started.md

@@ -35,6 +35,8 @@ puter.ai.chat(`Why did the chicken cross the road?`).then(console.log);
 
 #### Use in Node.js
 
+Initialize Puter.js with your auth token using the `init` function:
+
 ```js
 import { init } from "@heyputer/puter.js/src/init.cjs";
 const puter = init(process.env.puterAuthToken);
@@ -43,6 +45,15 @@ const puter = init(process.env.puterAuthToken);
 puter.ai.chat("What color was Napoleon's white horse?").then(console.log);
 ```
 
+If your environment has browser access, you can obtain a token via browser login:
+
+```js
+import { init, getAuthToken } from "@heyputer/puter.js/src/init.cjs";
+
+const authToken = await getAuthToken(); // performs browser based auth
+const puter = init(authToken);
+```
+
 </div>
 
 <div class="example-content" data-section="cdn">

src/docs/src/supported-platforms.md

@@ -87,8 +87,6 @@ The Puter ecosystem hosts over 60,000 live applications, from essential tools li
 
 ## **Node.js**
 
-> **Note:** Node.js support is currently in beta.
-
 Puter.js works seamlessly in Node.js environments, allowing you to integrate AI, databases, and cloud storage with your Node.js applications. This makes it ideal for building backend services and APIs, performing server-side data processing, or creating CLI tools and automation scripts.
 
 ```js
@@ -106,6 +104,8 @@ puter.ai.chat("What color was Napoleon's white horse?").then((response) => {
 
 Get started quickly with the [Node.js + Express template](https://github.com/HeyPuter/node.js-express.js).
 
+<div class="info">If your environment has browser access (e.g. CLI tools), you can use <code>getAuthToken()</code> to obtain a token via web-based login.</div>
+
 ## **Serverless Workers**
 
 [Serverless Workers](/Workers/) let you run HTTP servers and backend APIs.