Update wpt.md

Co-authored-by: Mukilan Thiyagarajan <[email protected]>
Signed-off-by: Manuel Rego <[email protected]>

Author: mrego

wpt.md

@@ -90,7 +90,7 @@ The chart below tracks our pass rates in several *focus areas* of the [Web Platf
     </table>
     <p id="score-explanation">
         The results are calculated as percentages of total <b>enabled</b> tests within the suite that pass.<br>
-        <b>Scores</b> are computed as follows, a passing test with no subtests gets a score of 1
+        <b>Scores</b> are computed as follows: a passing test with no subtests gets a score of 1
         while a test with subtests gets a score between 0 and 1 representing the fraction of passing subtests within that test.<br>
         <b>Subtests</b> are calculated by given equal weight to both top-level tests and subtests.
     </p>