Update example of PNCircleChart

@@ -62,14 +62,14 @@ You will need LLVM 3.0 or later in order to build PNChart.
 
 
 ```objective-c
-  #import "PNChart.h"
+#import "PNChart.h"
 
-  //For CircleChart
+//For CircleChart
 
-  PNCircleChart * circleChart = [[PNCircleChart alloc] initWithFrame:CGRectMake(0, 135.0, SCREEN_WIDTH, 200.0)];
-  circleChart.total = [NSNumber numberWithInt:100];
-  circleChart.current = [NSNumber numberWithInt:60];
-  [circleChart strokeChart];
+PNCircleChart * circleChart = [[PNCircleChart alloc] initWithFrame:CGRectMake(0, 80.0, SCREEN_WIDTH, 100.0) andTotal:[NSNumber numberWithInt:100] andCurrent:[NSNumber numberWithInt:60]];
+circleChart.backgroundColor = [UIColor clearColor];
+[circleChart setStrokeColor:PNGreen];
+[circleChart strokeChart];
 
 ```