Fix broken VD link in Android-Platform-Views.md (#168026)

One char docs fix. Noticed while reading the docs.

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Co-authored-by: Gray Mackall <mackall@google.com>

docs/platforms/android/Android-Platform-Views.md

@@ -29,7 +29,7 @@ within their Flutter UI.
 # Approaches
 
 There are currently three different implementations of Android platform views:
-- [Virtual Display](Virtual_Display.md) (VD)
+- [Virtual Display](Virtual-Display.md) (VD)
 - [Hybrid Composition](../Hybrid-Composition.md) (HC)
 - [Texture Layer Hybrid Composition](Texture-Layer-Hybrid-Composition.md) (TLHC)