typos in hackathon photos

Author: MarcinKosinski

2019/hackathon.md

@@ -12,12 +12,12 @@ robots: noindex
 Winners of the contest! From the left: Monika Kwiatkowska, Bartłomiej Karaban, Michał Miotk and Monika Krzyżanowska.
 On the right Kamil Marcin Kosiński, mentor of the event from PwC Polska - sponsor of the event! Congratulations.
 
-<img src="/foundation/images/fulls/whyr2019/hackathon/winners.JPG" class="fit image">
+<img src="/foundation/images/fulls/whyr2019/hackathon/winners.jpg" class="fit image">
 
 More photos [here](https://www.facebook.com/pg/whyRconf/photos/?tab=album&album_id=990285274655715)
 
-<img src="/foundation/images/fulls/whyr2019/hackathon/ppl1.JPG" class="fit image">
-<img src="/foundation/images/fulls/whyr2019/hackathon/ppl2.JPG" class="fit image">
+<img src="/foundation/images/fulls/whyr2019/hackathon/ppl1.jpg" class="fit image">
+<img src="/foundation/images/fulls/whyr2019/hackathon/ppl2.jpg" class="fit image">
 
 #### Table of Contents