distance for links

app.js

@@ -39,10 +39,9 @@ d3.forceSimulation()
     .nodes(nodesData)
     .force("charge_force", d3.forceManyBody())
     .force("center_force", d3.forceCenter(WIDTH / 2, HEIGHT / 2)) //position centering force at center x,y coords
-    .force("links", d3.forceLink(linksData)
-        .id(function(datum){
+    .force("links", d3.forceLink(linksData).id(function(datum){
             return datum.name
-        }))
+        }).distance(160))
     .on("tick", function(){
         nodes.attr("cx", function(datum) { return datum.x; })
             .attr("cy", function(datum) { return datum.y; });