Update users_comments.md

Author: AtsushiSakai

users_comments.md

@@ -281,6 +281,12 @@ Great job
 
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+Dear Atsushi Sakai <br>Thank you for the Python Robotics
+
+--Alex Liberzon
+
+---
+
 # Citations
 
 1. B. Blaga, M. Deac, R. W. Y. Al-doori, M. Negru and R. Dǎnescu, "Miniature Autonomous Vehicle Development on Raspberry Pi," 2018 IEEE 14th International Conference on Intelligent Computer Communication and Processing (ICCP), Cluj-Napoca, Romania, 2018, pp. 229-236.