Update readme.md

fix poi link

Author: ryanisgrig

docs/readme.md

@@ -83,7 +83,7 @@
 |[Calendar Skill](/docs/reference/skills/productivity-calendar.md)|Add calendar capabilities to your assistant. Powered by Microsoft Graph and Google.|
 |[Email Skill](/docs/reference/skills/productivity-email.md)|Add email capabilities to your assistant. Powered by Microsoft Graph and Google.|
 |[To Do Skill](/docs/reference/skills/productivity-todo.md)|Add task management capabilities to your assistant. Powered by Microsoft Graph.|
-|[Point of Interest Skill](/docs/reference/skills/productivity-pointofinterest.md)|Find points of interest and directions. Powered by Azure Maps and FourSquare.|
+|[Point of Interest Skill](/docs/reference/skills/pointofinterest.md)|Find points of interest and directions. Powered by Azure Maps and FourSquare.|
 |[Automotive Skill](/docs/reference/skills/automotive.md)|Industry-vertical Skill for showcasing enabling car feature control.|
 |[Experimental Skills](/docs/reference/skills/experimental.md)|News, Restaurant Booking and Weather.|