[css-color-4] consistent "color space" fix w3c#6217

Author: svgeesus

css-color-4/LCH-examples.html

@@ -8,7 +8,7 @@
     <textarea id="Rec2020results"></textarea>
 	<script>
 	// convert a sampling of
-    // several RGB colorspaces
+    // several RGB color spaces
     // to Lab and LCH
 
     console.log("test sRGB");

css-color-4/Overview.bs

@@ -31,7 +31,7 @@ function deltaE2000 (reference, sample) {
 	let G = 0.5 * (1 - Math.sqrt(C7/(C7+Gfactor)));
 
 	// scale a axes by asymmetry factor
-	// this by the way is why there is no Lab2000 colorspace
+	// this by the way is why there is no Lab2000 color space
 	let adash1 = (1 + G) * a1;
 	let adash2 = (1 + G) * a2;