Fixing link check. Removing 'www' on this domain to make the link check pass

Author: spier

patterns/2-structured/start-as-experiment.md

@@ -91,7 +91,7 @@ of success.
 ## Related Patterns
 
 - _Trial Run_ (from the book [_Fearless
-  Change_](https://www.fearlesschangepatterns.com/))
+  Change_](https://fearlesschangepatterns.com/))
 
 ## Known Instances