Update status.html / responsive <svg>

Quick fix for a responsive <svg> using viewBox instead of width/height.

status.html

@@ -182,8 +182,7 @@ layout: default
                 .range(colors);
 
             var svg = d3.select("#chart").append("svg")
-                .attr("width", width + margin.left + margin.right)
+                .attr("viewBox", "0 0 960 430")
-                .attr("height", height + margin.top + margin.bottom)
                 .append("g")
                 .attr("transform", "translate(" + margin.left + "," + margin.top + ")");