Merge pull request #3398 from MinusKelvin/master

[css-values-4] Fix typo

Author: tabatkins

css-values-4/Overview.bs

@@ -361,9 +361,9 @@ Combining Values: Interpolation, Addition, and Accumulation</h2>
 			<var>V<sub>result</sub></var>
 			at a distance of <var>p</var>
 			along the interval between
-			<var>V<sub>a</sub></var> and <var>V<sub>a</sub></var>
+			<var>V<sub>a</sub></var> and <var>V<sub>B</sub></var>
 			such that <var>p</var> = 0 produces <var>V<sub>a</sub></var>
-			and <var>p</var> = 1 produces <var>V</var><sub>end</sub>.
+			and <var>p</var> = 1 produces <var>V</var><sub>B</sub>.
 
 			The range of <var>p</var> is (&minus;&infin;, &infin;)
 			due to the effect of <a>timing functions</a>.