docs(tooltip): split the follow sentence to pass the STE check

docs/src/content/tooltip/index.md

@@ -41,7 +41,7 @@ The tooltip is HTML, thus it goes in `Chart.Root` and not in `Chart.Plot`. It ma
 
 `offset` is the distance between the point and the tooltip, in pixels. The tooltip is above the point, and its middle is at the x position of the point.
 
-With `follow`, the tooltip moves along with the pointer, at the height of the point under the pointer. Use it for a large mark, as a long bar, whose position can be far from the pointer. The point that has the keyboard focus keeps its tooltip at the point. A tooltip that follows the pointer stays in the box that would cut it (the nearest ancestor whose `overflow` is not `visible`, or the page) instead of the figure: on a figure narrower than the tooltip, it still goes where the pointer goes.
+With `follow`, the tooltip moves along with the pointer, at the height of the point under the pointer. Use it for a large mark, as a long bar, whose position can be far from the pointer. The point that has the keyboard focus keeps its tooltip at the point. A tooltip that follows the pointer stays in the box that would cut it, not in the figure. That box is the nearest ancestor whose `overflow` is not `visible`, or the page. Thus on a figure narrower than the tooltip, the tooltip still goes where the pointer goes.
 
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