JUnit 5 in Java 8 using Fizz Buzz example

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+.idea
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README.md

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-## Fizz Buzz Example in Kotlin with Spek Framework for BDD Style tests
+## Fizz Buzz Example in Java 8 using JUnit 5
 
 ### Fizz Buzz is a game where
 - if the number is divisible by 3, you say Fizz