ENH: Tutorial update

tutorials/incompressible/simpleFoam/motorBike/system/forceCoeffs

@@ -27,9 +27,13 @@ forceCoeffs1
     lRef        1.42;        // Wheelbase length
     Aref        0.75;        // Estimated
 
-    nBin        20;          // output data into bins
-    binDir      (1 0 0);     // bin direction
-    binFormat   gnuplot;
+    binData
+    {
+        nBin        20;          // output data into 20 bins
+        direction   (1 0 0);     // bin direction
+        format      gnuplot;
+        cumulative  yes;
+    }
 }