Update 3D-drag-detectors.md Title Casing

I noticed the title of this doc is lowercase

Author: axyndey

content/en-us/ui/3D-drag-detectors.md

@@ -1,5 +1,5 @@
 ---
-title: 3D drag detectors
+title: 3D Drag Detectors
 description: 3D drag detectors facilitate and encourage interaction with 3D objects in an experience, such as opening doors and drawers, sliding a part around, and much more.
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