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docs/transforms/shift.md

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-# Shift transform  <VersionBadge pr="1896" />
+# Shift transform <VersionBadge pr="1896" />
 
 The **shift transform** is a specialized [map transform](./map.md) that derives an output **x1** channel by shifting the **x** channel; it can be used with the [difference mark](../marks/difference.md) to show change over time. For example, the chart below shows the price of Apple stock. The <span style="border-bottom: solid #01ab63 3px;">green region</span> shows when the price went up over the given interval, while the <span style="border-bottom: solid #4269d0 3px;">blue region</span> shows when the price went down.