Merge pull request #4712 from aspiers/doc-disabling-default-synced-folders

Improve docs for synced folders

website/docs/source/v2/synced-folders/basic_usage.html.md

@@ -66,7 +66,7 @@ Synced folders are automatically setup during `vagrant up` and
 
 ## Disabling
 
-Shared folders can be disabled by adding the `disabled` option to
+Synced folders can be disabled by adding the `disabled` option to
 any definition:
 
 ```ruby
@@ -75,6 +75,12 @@ Vagrant.configure("2") do |config|
 end
 ```
 
+Disabling the default `/vagrant` share can be done as follows:
+
+```ruby
+config.vm.synced_folder ".", "/vagrant", disabled: true
+```
+
 ## Modifying the Owner/Group
 
 By default, Vagrant mounts the synced folders with the owner/group set