give monsters sylf symbol

glossary.tex

@@ -1137,6 +1137,7 @@ Fewer monsters wander through them, because fewer plants grow there},
   text={monster},
   prefix={a\space},
   parent={fenestra},
+  symbol={\glssymbol{sylf}},
   description={wander slowly, looking for deer, auroch, or anything they can eat.
   When they hear people, the noises and lights excite them, and they instinctively begin to stalk},
 }