Fix small typo (#2173)

Author: georgejl7

examples/classification/convolution_based.ipynb

@@ -16,7 +16,7 @@
     " the transform with  a scikitlearn RidgeClassifierCV classifier.  Ther term\n",
     " convolution and kernel are  used interchangably in this notebook. A convolution is a\n",
     "  subseries that is used to create features for a time series. To do this, a\n",
-    "  convolution is run along a series, and the dot product is calculated. The creates a\n",
+    "  convolution is run along a series, and the dot product is calculated. This creates a\n",
     "   new series (often called an activation map or feature map) where large values\n",
     "   correspond to a close correlation to the convolution.\n",
     "\n",