Count vowels in Java

Signed-off-by: Adrian Espinosa <aespinosamoreno@gmail.com>
Pig Latin in Java

Signed-off-by: Adrian Espinosa <aespinosamoreno@gmail.com>
Reverse String in Java

Signed-off-by: Adrian Espinosa <aespinosamoreno@gmail.com>
Updating README and main

Signed-off-by: Adrian Espinosa <aespinosamoreno@gmail.com>