[mediaqueries-4] Fix spelling.

Author: dbaron

mediaqueries-4/Overview.bs

@@ -2166,7 +2166,7 @@ device-aspect-ratio</h3>
 Changes</h2>
 
 <h3 id="changes-2021-12">
-Change since the 25 December 2021 Candidate Recoomendation Draft</h3>
+Changes since the 25 December 2021 Candidate Recommendation Draft</h3>
 The following changes were made to this specification since the
 <a href="https://www.w3.org/TR/2020/CR-mediaqueries-4-20200721/">25 December 2021 Candidate Recommendation Draft</a>: