add an initial point to the karma key graph

dr_botzo/karma/templates/karma/karma_key.html

@@ -15,7 +15,7 @@
     Chart.defaults.global.maintainAspectRatio = true;
     var ctx = $("#karma_history").get(0).getContext("2d");
     var data = {
-      labels: [{% for x in entry.history %}"{{ x.0 }}", {% endfor %}],
+      labels: ["EPOCH", {% for x in entry.history %}"{{ x.0 }}", {% endfor %}],
       datasets: [
         {
           label: "{{ entry.key }}",
@@ -25,7 +25,7 @@
           pointStrokeColor: "#fff",
           pointHighlightFill: "#fff",
           pointHighlightStroke: "rgba(220,220,220,1)",
-          data: [{% for x in entry.history %}{{ x.2 }}, {% endfor %}]
+          data: [0, {% for x in entry.history %}{{ x.2 }}, {% endfor %}]
         }
       ]
     };