Refactor timeline macro for compatibility with Jinja2 templates

src/components/timeline/example-timeline.njk

@@ -2,34 +2,34 @@
 
 {{
     onsTimeline({
-    "timelineItems": [
-            {
-                "heading": 'September to October 2020',
-                "itemsList": [
-                    {
-                        "text": "Meet your Community Engagement Manager and set up regular catch up meetings"
-                    },
-                    {
-                        "text": "Local Authority Toolkit available online"
-                    }
-                ]
-            },
-            {
-                "heading": 'September 2020',
-                "content": '<p>ONS to provide Councillor Handbook for distribution</p>'
-            },
-            {
-                "heading": 'November 2020',
-                "content": '<p>ONS to provide you with content for magazines and publications</p>'
-            },
-            {
-                "heading": 'January to March 2021',
-                "content": '<p>ONS to provide a range of press releases for external use</p>'
-            },
-            {
-                "heading": 'February to April 2021',
-                "content": '<p>Promote your local Census Support Centres</p>'
-            }
-        ]
-    })
+        "timelineItems": [
+                {
+                    "heading": 'September to October 2020',
+                    "itemsList": [
+                        {
+                            "text": "Meet your Community Engagement Manager and set up regular catch up meetings"
+                        },
+                        {
+                            "text": "Local Authority Toolkit available online"
+                        }
+                    ]
+                },
+                {
+                    "heading": 'September 2020',
+                    "content": '<p>ONS to provide Councillor Handbook for distribution</p>'
+                },
+                {
+                    "heading": 'November 2020',
+                    "content": '<p>ONS to provide you with content for magazines and publications</p>'
+                },
+                {
+                    "heading": 'January to March 2021',
+                    "content": '<p>ONS to provide a range of press releases for external use</p>'
+                },
+                {
+                    "heading": 'February to April 2021',
+                    "content": '<p>Promote your local Census Support Centres</p>'
+                }
+            ]
+        })
 }}