Add math.html partial if math parameter is true

layouts/partials/paige/head.html

@@ -42,6 +42,9 @@
     {{ with .Params.customJS }}
     <script type="module" src="{{ . | relURL }}"></script>
     {{ end }}
+    {{ if .Param "math" }}
+      {{ partialCached "math.html" . }}
+    {{ end }}
     
     {{ partial "paige/links.html" $page }}