fix typo

Author: tmendo

README.md

@@ -5,7 +5,7 @@
 **We have a blog post about the first time we ran this game at a conference. Check it [here](https://probely.com/blog/lessons-from-our-pod-game-challenge-session-in-the-appsec-village-at-rsa)**.
 
 
-You can also play the online version based, [here](https://prbly.us/Appsec-Challenge?__hstc=3052591.161d1aacb0009ea77856cf931ac537e6.1688683987521.1694793248395.1694818405620.83&__hssc=3052591.6.1694818405620&__hsfp=173099781).
+You can also play the online version, [here](https://prbly.us/Appsec-Challenge?__hstc=3052591.161d1aacb0009ea77856cf931ac537e6.1688683987521.1694793248395.1694818405620.83&__hssc=3052591.6.1694818405620&__hsfp=173099781).
 
 ## Objectives