Work around possible Pandoc bug

See github.com/jgm/pandoc/issues/8982

edited/03.markdown

@@ -830,7 +830,7 @@ Tyrrell says:
 Of the _Hundred Court_ he says:
 
 > “In this court anciently, _one of the principal inhabitants, called
-> the alderman, together with the barons of the Hundred[^51]—id est the
+> the alderman, together with the barons of the Hundred_[^51]_—id est the
 > freeholders—was judge_.”—_Ditto_, p. 80.
 
 Also he says: