cfg: make SPA optional

layouts/partials/graph.html

@@ -16,3 +16,14 @@
 </style>
 {{ $js := resources.Get "js/graph.js" | resources.Fingerprint "md5" }}
 <script src="{{ $js.Permalink }}"></script>
+<script>
+drawGraph(
+  {{strings.TrimRight "/" .Page.Permalink}},
+  {{strings.TrimRight "/" .Site.BaseURL}},
+  {{$.Site.Data.graphConfig.paths}},
+  {{$.Site.Data.graphConfig.depth}},
+  {{$.Site.Data.graphConfig.enableDrag}},
+  {{$.Site.Data.graphConfig.enableLegend}},
+  {{$.Site.Data.graphConfig.enableZoom}}
+);
+</script>