Add CLI authentication commands documentation

installation.mdx

@@ -1,7 +1,7 @@
 ---
 title: "Install the CLI"
 description: "Install the Mintlify CLI to preview documentation locally, test changes in real time, and catch build errors before deploying to production."
-keywords: ["CLI", "npm", "local development", "Node.js", "pnpm", "mint dev", "broken links", "accessibility"]
+keywords: ["CLI", "npm", "local development", "Node.js", "pnpm", "mint dev", "broken links", "accessibility", "mint login", "mint logout", "mint status", "authentication"]
 ---
 
 <img
@@ -177,6 +177,34 @@ If this `mint update` command is not available on your local version, re-install
     ```
   </CodeGroup>
 
+## Authentication
+
+Authenticate with your Mintlify account to use CLI features that require access to your project, such as analytics.
+
+### Log in
+
+```bash
+mint login
+```
+
+This command opens your browser to authenticate with Mintlify. After you authorize in the browser, the CLI receives your credentials automatically. If the browser doesn't open, the CLI displays a URL you can copy and a prompt where you can paste the authorization code manually.
+
+### Check authentication status
+
+View the account and organization associated with your current session:
+
+```bash
+mint status
+```
+
+### Log out
+
+Remove your stored credentials:
+
+```bash
+mint logout
+```
+
 ## Additional commands
 
 ### Find broken links