Update users_comments.md

Author: AtsushiSakai

users_comments.md

@@ -140,6 +140,13 @@ so kind of you can you make videos of it.
 
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+Dear AtshshiSakai, <br>You are very wise and smart that you created this library for students wanting to learn Probabilistic Robotics and actually perform robot control. <br>Hats off to you and your work. <br>I am also reading your book titled : Python Robotics
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+--Himanshu
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