Add proposal constraints to containts

Author: mdeweerd

codespell_lib/data/dictionary.txt

@@ -16372,7 +16372,7 @@ containted->contained
 containter->container
 containters->containers
 containting->containing
-containts->contains
+containts->contains, constraints,
 containuations->continuations
 contais->contains
 contaisn->contains