tracks/prolog/exercises/hello-world/README.md in trackler-2.2.1.110 vs tracks/prolog/exercises/hello-world/README.md in trackler-2.2.1.111

@@ -6,10 +6,10 @@
 the traditional first program for beginning programming in a new language
 or environment.
 
 The objectives are simple:
 
-- Write a function that returns the string "Hello, World!".
+- Write a function that returns the string "Hello World!".
 - Run the test suite and make sure that it succeeds.
 - Submit your solution and check it at the website.
 
 If everything goes well, you will be ready to fetch your first real exercise.
 ## Source