Remove file extensions.

Co-authored-by: Manny Silva <[email protected]>

Author: DennisDawson

docs/get-started/tutorials/index.md

@@ -7,7 +7,7 @@ description: Step-by-step tutorials to introduce common Doc Detective tasks.
 
 These examples walk through the steps of setting up and running Doc Detecitve tests.
 
-- [Set up your test environment](set-up-your-test-environment.md)
-- [Fill in form fields](fill-fields.md)
-- [Capture screenshot](capture-screenshot.md)
-- [Record video](record-video.md)
+- [Set up your test environment](set-up-your-test-environment)
+- [Fill in form fields](fill-fields)
+- [Capture screenshot](capture-screenshot)
+- [Record video](record-video)