Update testimonials.yml (#58)

Author: yanquisalexander

_data/testimonials.yml

@@ -57,3 +57,7 @@
 - name: David Ningthoujam
   username: David
   text: I always wanted to be a app developer but I don’t have any knowledge of Java, so it was hard for me to make apps. Then, I found Kodular, now I can make professional apps without writing a single line of code and it is always free.
+
+- name: Alexitoo
+  username: alexitoo_uy
+  text: Kodular is living proof that anyone is capable of creating applications, from a simple "Hello World" to the next viral app.