Update README.md (#836)

faker-ruby · Mar 1, 2017 · 7d45f89 · 7d45f89
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@@ -109,6 +109,12 @@ that have been returned, for example between tests.
 Faker::Name.unique.clear # Clears used values for Faker::Name
 Faker::UniqueGenerator.clear # Clears used values for all generators
 ```
+It is also possible to add a random number to the end of faker data to increase the 
+likelihood of unique data being generated. For example:
+
+```ruby
+Faker::Name.unique + ((1..1000).to_a).sample
+```
 
 ## Customization