relaxing clusterX-x1.demoinfo.yaml from json to yaml

cluster-x/clusterX-x1.demoinfo.yaml

-{
-"id": "59fb07f59784de0031020891",
-"type": "demos",
-"attributes": {
-"title": "Predicting ground-states of binary alloys through cluster expansion: Example of a AlNa binary surface alloy",
-"logicalPath": "/data/shared/rsant/clusterX-x1.bkr",
-"authors": ["Santiago Rigamonti", "Maria Troppenz",  "Claudia Draxl"],
-"editLink": "/notebook-edit/data/shared/rsant/clusterX-x1.bkr",
-"isPublic": true,
-"username": "rsant",
-"description": "A tool for predicting ground state configurations of binary alloys. In this tutorial, the ground state configurations of a AlNa surface alloy are found. Starting from a set of ab initio data for random configurations of the alloy, a cluster expansion is performed and the ground states are found through a configurational sampling.",
-"created_at": "2017-10-06T16:00:10.746Z",
-"updated_at": "2017-10-06T16:00:10.746Z",
-"labels" : { 
-	"category" : ["Demo"],
-	"platform" :  ["beaker"],
-	"language" :  ["python"],
-	"data_analytics_method" : ["Cluster expansion"],
-	"application_section" : ["Predicting ground-states of alloys (convex hull construction)"],
-	"application_keywords": ["Binary alloys", "Surface", "AlNa"]
-}
-}
-}
+title: "Predicting ground-states of binary alloys through cluster expansion: Example of a AlNa binary surface alloy"
+logicalPath: "/data/shared/rsant/clusterX-x1.bkr"
+authors: ["Santiago Rigamonti", "Maria Troppenz",  "Claudia Draxl"]
+editLink: "/notebook-edit/data/shared/rsant/clusterX-x1.bkr"
+isPublic: true
+username: "rsant"
+description: "A tool for predicting ground state configurations of binary alloys. In this tutorial, the ground state configurations of a AlNa surface alloy are found. Starting from a set of ab initio data for random configurations of the alloy, a cluster expansion is performed and the ground states are found through a configurational sampling."
+created_at: "2017-10-06T16:00:10.746Z"
+updated_at: "2017-10-06T16:00:10.746Z"
+labels: 
+  category: ["Demo"]
+  platform: ["beaker"]
+  language: ["python"]
+  data_analytics_method: ["Cluster expansion"]
+  application_section: ["Predicting ground-states of alloys (convex hull construction)"]
+  application_keywords: ["Binary alloys", "Surface", "AlNa"]