[css-color-4][editorial] Clear up formatting of footnotes

Author: svgeesus

css-color-4/Overview.bs

@@ -6181,32 +6181,32 @@ Sample Pseudocode for the Ray Trace Gamut Mapping</h4>
 
 	<h5 id="raytrace-footnotes">Footnotes for Ray Trace aggorithm</h5>
 	<ol>
-		<li id="raytrace-footnote-1"><sup>1</sup> 
+		<li id="raytrace-footnote-1">
 			It is assumed the minimum value is 0
 			and that all channels have the same minimum. 
 			The value should be small relative to the unit type. 
 			64 bit could easily be as small as 1e-14, but 1e-6 is fine in practice.</li>
-		<li id="raytrace-footnote-2"><sup>2</sup> 
+		<li id="raytrace-footnote-2">
 			1.0 represents the maximum in-gamut channel value,
 			and it is assumed all channels have the same maximum.</li>
-		<li id="raytrace-footnote-3"><sup>3</sup>
+		<li id="raytrace-footnote-3">
 			This places the current color back on the chroma reduction curve,
 			if it has deviated.</li>
-		<li id="raytrace-footnote-4"><sup>4</sup>
+		<li id="raytrace-footnote-4">
 			This means |origin_rgb| is below the gamut surface, 
 			so we use it as an anchor closer to the gamut surface.</li>
-		<li id="raytrace-footnote-5"><sup>5</sup>
+		<li id="raytrace-footnote-5">
 			This is provided for catastrophic failures 
 			where a specific, perceptual mapping space 
 			completely breaks down 
 			due to ridiculously wide colors (outside the visible spectrum).
 			It is expected that non-imaginary colors in CSS should never trigger this.
-		<li id="raytrace-footnote-6"><sup>6</sup>
+		<li id="raytrace-footnote-6">
 			For typical RGB spaces 
 			where the gamut bounds are 0 and 1 for each component
 			this simplifies to a single constant
 			rather than a 3-element array.</li>
-		<li id="raytrace-footnote-7"><sup>7</sup>
+		<li id="raytrace-footnote-7">
 			favoring the first intersection in the direction |start| -> |end|.
 	</ol>