Hyphenate "face-to-face" when appropriate

lib/convert-worker.js

@@ -673,6 +673,11 @@ function fixHyphens(xml) {
   // noun cases are missing one or both hyphens.
   xml = xml.replace(/([Aa]) just[ -]in case/g, "$1 just-in-case");
 
+  // When used as an adjective, it's hyphenated. It turns out most cases are as an adverb, so we go with this approach:
+  xml = xml.replace(
+    /face to face(?= meeting| hang-out| interaction| contact| conversation| confrontation| fight)/g,
+    "face-to-face");
+
   // This is usually correct but sometimes wrong.
   xml = xml.replace(/neo /g, "neo-");