Update clade label to "21H (Mu)"
WHO has designated clade 21H as the "Mu" variant (https://www.who.int/en/activities/tracking-SARS-CoV-2-variants/). This commit updates our clade label to match.
@@ -112,9 +112,9 @@ clade gene site alt
21G (Lambda) nuc 22917 A
21G (Lambda) nuc 23031 C
-21H nuc 11451 G
-21H nuc 13057 T
-21H nuc 17491 T
-21H nuc 21995 A
-21H nuc 21993 C
-21H nuc 22599 A
+21H (Mu) nuc 11451 G
+21H (Mu) nuc 13057 T
+21H (Mu) nuc 17491 T
+21H (Mu) nuc 21995 A
+21H (Mu) nuc 21993 C
+21H (Mu) nuc 22599 A
