feat(dev): document how to disable browser auto launch (#4106)

* docs(de): document how to avoid browser to auto start

* fix: remove wrong docs

Co-authored-by: Alberto De Agostini <alberto.deagostini@adevinta.com>
Co-authored-by: kodiakhq[bot] <49736102+kodiakhq[bot]@users.noreply.github.com>

docs/commands/dev.md

@@ -42,6 +42,7 @@ netlify dev
 netlify dev
 netlify dev -d public
 netlify dev -c "hugo server -w" --targetPort 1313
+BROWSER=none netlify dev # disable browser auto opening
 ```
 
 ---

docs/netlify-dev.md

@@ -85,6 +85,12 @@ EXAMPLES
   $ netlify dev -c "hugo server -w" --targetPort 1313
 ```
 
+The command will automatically open your preferred browser to serve the application. You can customize this behaviour by using the `BROWSER` environment variable:
+
+```bash
+$ BROWSER=none netlify dev # this will disable the auto opening of the browser
+```
+
 ## Live Share
 
 To share your ongoing dev session with a coworker, just run Netlify Dev with a `--live` flag:

src/commands/dev/dev.js

@@ -335,7 +335,12 @@ const createDevCommand = (program) => {
         'specify the path to a local GeoIP location database in MMDB format',
       ).hideHelp(),
     )
-    .addExamples(['netlify dev', 'netlify dev -d public', 'netlify dev -c "hugo server -w" --targetPort 1313'])
+    .addExamples([
+      'netlify dev',
+      'netlify dev -d public',
+      'netlify dev -c "hugo server -w" --targetPort 1313',
+      'BROWSER=none netlify dev # disable browser auto opening',
+    ])
     .action(dev)
 }
 module.exports = { createDevCommand }