Update Introductory_modules/Introduction_to_Ray_AI_Runtime.ipynb

Signed-off-by: Kamil Kaczmarek <kamil@anyscale.com>

Introductory_modules/Introduction_to_Ray_AI_Runtime.ipynb

@@ -368,7 +368,7 @@
    "source": [
     "**Coding exercise**\n",
     "\n",
-    "Ray AIR provides several [preprocessors out of the box](https://docs.ray.io/en/latest/data/preprocessors.html#types-of-preprocessors) and also supports the implementation of [custom preprocessors](https://docs.ray.io/en/latest/data/preprocessors.html#implementing-custom-preprocessors). Later on, you can compare model performance between the given preprocessor and your custom configuration.\n",
+    "Ray provides several [preprocessors out of the box](https://docs.ray.io/en/latest/data/preprocessors.html#types-of-preprocessors) and also supports the implementation of [custom preprocessors](https://docs.ray.io/en/latest/data/preprocessors.html#implementing-custom-preprocessors). Later on, you can compare model performance between the given preprocessor and your custom configuration.\n",
     "\n",
     "Select a [built-in](https://docs.ray.io/en/latest/data/preprocessors.html#built-in-preprocessors) `Preprocessor` and use `fit_transform()` to [apply it](https://docs.ray.io/en/latest/data/api/preprocessor.html#fit-transform-apis) to the dataset. Visualize the results (perhaps using the [integration with pandas](https://docs.ray.io/en/latest/data/api/input_output.html#ray.data.from_pandas) to generate a histogram view)\n",
     "\n",