README.md in jgd-1.6.2 vs README.md in jgd-1.6.3

@@ -64,6 +64,19 @@
 `env/global/secure`, as explained
 [here](http://docs.travis-ci.com/user/encryption-keys/).
 
 Don't forget to add `gem require 'jgd'` to your `Gemfile`.
 
+You can use SSH key instead. First, you should encrypt it:
+
+```bash
+$ travis encrypt-file id_rsa --add
+```
+
+Then, use the URI that starts with `git@`:
+
+```yaml
+script:
+  - jgd -u [e-mail]:yegor256/blog.git
+```
+
 Read also [this article](http://www.yegor256.com/2014/06/22/jekyll-github-deploy.html).