typo fix

typo fix

Author: Sgilholy

README.md

@@ -12,6 +12,6 @@ This project contains **intentionally broken automation scripts** to simulate re
 
 This test script opens the [Mock Exam Network Sandbox](https://sandbox.mockexamnetwork.com/) and attempts various task on the website.
 Full solutions can be found on
-[Mock Exam Network playground repo](https://mockexamnetwork.com/playground/)
+[Mock Exam Network playground](https://mockexamnetwork.com/playground/)
 
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