Merge pull request jdf#87 from Prabhnith/patch-1

"Fixed issue: 2 Tutorial bugs" in index.html w.r.t jdf#83 issue

Author: Jonathan Feinberg

Tutorials/objects/index.html

@@ -153,6 +153,7 @@ <h3>Using an Object</h3>Before we look at the actual writing of a
   display()
 
 def move():
+  global x
   x = x + speed
   if x &gt; width:
           x = 0
@@ -332,7 +333,7 @@ <h3>Writing the Cookie Cutter</h3>The simple Car example above
     20, 10)
 
 def drive(self):
-  self.xpos = self.xspeed
+  self.xpos += self.xspeed
   if self.xpos &gt; width:
     self.xpos = 0
 </pre>