Update D3.md

D3.md

@@ -60,33 +60,38 @@ d3.selectAll('div').text('hi'); //set the content of the selection to the exact
 Named based off of what kind of data they accept
 
 ```javascript
-d3.json('path', function(error, data){});
-d3.csv('path', function(error, data){});
-d3.tsv('path', function(error, data){});
-d3.xml('path', function(error, data){});
-d3.html('path', function(error, data){});
-d3.text('path', function(error, data){});
+d3.json('path').then(function(data){});
+d3.csv('path').then(function(data){});
+d3.tsv('path').then(function(data){});
+d3.xml('path').then(function(data){});
+d3.html('path').then(function(data){});
+d3.text('path').then(function(data){});
 
 //make a post
-d3.request('/runs') //make a request to the server
-	.header("Content-Type", "application/json") //tell the server we're sending JSON data
-	.post(
-		//must turn data object into string
-		JSON.stringify(runObject),
-		function(){ //callback
-
-		}
-	);
+d3.json('/runs', {
+	method:'POST',
+	headers:{
+		'Content-type': 'application/json; charset=UTF-8'
+	},
+	body:JSON.stringify(runObject)
+}).then(function(data){});
 
 //send delete
-d3.request('/runs/'+d.id)
-	.header("Content-Type", "application/json") //we're sending data
-	.send('DELETE', function(){}); //send a DELETE request
+d3.json('/runs/'+d.id, {
+	method:'DELETE',
+	headers:{
+		'Content-type': 'application/json; charset=UTF-8'
+	}
+}).then(function(data){});
 
 //send update
-d3.request('/runs/'+d.id)
-	.header("Content-Type","application/json") //we're sending JSON
-	.send('PUT', JSON.stringify(d), function(){});//pass alterted 'd' object to API
+d3.json('/runs/'+d.id, {
+	method:'PUT',
+	headers:{
+		'Content-type': 'application/json; charset=UTF-8'
+	},
+	body:JSON.stringify(runObject)
+}).then(function(data){});
 ```
 
 ## Data binding