README.md in dbox-0.6.13 vs README.md in dbox-0.6.14

@@ -261,5 +261,14 @@
 
 > Dbox.pull("/tmp/public")
 > File.read("#{ENV['HOME']}/Dropbox/Public/hello.txt")
 => "Oh, Hello"
 ```
+
+Advanced
+--------
+
+To speed up your syncs, you can manually set the number concurrent dropbox operations to execute. (The default is 2.)
+
+```sh
+$ export DROPBOX_CONCURRENCY=5
+```