Remove cheesy tagline from tour page

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

Author: milkyskies

docs/site/src/content/docs/guide/tour.md

@@ -4,8 +4,6 @@ sidebar:
   order: 1
 ---
 
-A quick tour of Floe's syntax and features. No explanations, just code.
-
 ## Basics
 
 ```floe