[Docs] Minor tweaks (#198)

* Removing redundant header

* Deleting Effects

Author: niels9001

components/Extensions/samples/Effects.md

@@ -12,8 +12,6 @@ issue-id: 0
 icon: Assets/TokenizingTextBox.png
 ---
 
-# TokenizingTextBox
-
 The [TokenizingTextBox](/dotnet/api/microsoft.toolkit.uwp.ui.controls.tokenizingtextbox) is an advanced [AutoSuggestBox](/uwp/api/Windows.UI.Xaml.Controls.AutoSuggestBox) which will display selected items as tokens within the textbox. A user can easily see the picked items or remove them easily.
 
 > [!Sample TokenizingTextBoxSample]