added ability to embed multiple metadata dashboards

Author: cameron-toy

share/jupyter/nbconvert/templates/presto/conf.json

@@ -1,12 +1,12 @@
 {
-    "base_template": "base",
-    "mimetypes": {
-        "text/html": true
-    },
-    "preprocessors": {
-        "100-pygments": {
-            "type": "nbconvert.preprocessors.CSSHTMLHeaderPreprocessor",
-            "enabled": true
-        }
+  "base_template": "base",
+  "mimetypes": {
+    "text/html": true
+  },
+  "preprocessors": {
+    "100-pygments": {
+      "type": "nbconvert.preprocessors.CSSHTMLHeaderPreprocessor",
+      "enabled": true
     }
+  }
 }