uses 'developer tools' to match browser convention

Author: raorao

sites/en/javascript-to-do-list/dev_tools.step renamed to sites/en/javascript-to-do-list/developer_tools.step

@@ -1,13 +1,13 @@
 goals do
-  goal "Get oriented with your browser's dev tools. They're a great jumping-off point for continuing to build your HTML, CSS, and JavaScript knowledge."
+  goal "Get oriented with your browser's developer tools. They're a great jumping-off point for continuing to build your HTML, CSS, and JavaScript knowledge."
   tip "The screenshots below are specific to the Chrome web browser, which is available for Mac and PC and has great developer tools. But if you're partial to another browser, there's usually a similar set of tools you can use, either built in (Internet Explorer 9, Safari) or installable with plugins (FireFox)."
 end
 
 steps do
 
   step do
     message <<-MARKDOWN
-      First, you've got to turn on your dev tools. They're hidden by default.
+      First, you've got to turn on your developer tools. They're hidden by default.
 
       <img src='../frontend/img/devtools.png'>
 
@@ -57,9 +57,9 @@ explanation do
 
   message <<-MARKDOWN
 
-## Keep Learning with Dev Tools
+## Keep Learning with Developer Tools
 
-With good browser dev tools, you can pick apart every website you visit. If you see cool
+With good browser developer tools, you can pick apart every website you visit. If you see cool
 CSS styles or JavaScript animations, you can always look under the hood and figure out how
 they're done. It's a great way to keep learning as a front end developer.
 

sites/en/javascript-to-do-list/the_basics_of_a_website.step

@@ -94,4 +94,4 @@ delete everything inside the ul element (lines 15 through 23). index.html should
 
 end
 
-next_step "dev_tools"
+next_step "developer_tools"