Removed and replace reference to Python generator

Author: seanlaw

docs/Tutorial_Fast_Approximate_Matrix_Profiles.ipynb

@@ -409,7 +409,7 @@
     "\n",
     "## Refining the distance profile\n",
     "\n",
-    "However, we can incrementally update and refine the approximation, by calling our generator again. Below, we call `next` nine more times (i.e., `10 * 0.01 = 0.10`) , so our new approximated matrix profile will be computed using roughly 10% of all pairwise distances in the full distance matrix."
+    "However, we can incrementally refine the approximation by calling `.update()` nine more times (i.e., `10 * 0.01 = 0.10`) , so our new approximated matrix profile will be computed using roughly 10% of all pairwise distances in the full distance matrix."
    ]
   },
   {