Fix typos

- Line 197: changed *test_test_prepare* to *test_text_prepare*

Author: Stallians

week1/week1-MultilabelClassification.ipynb

@@ -194,7 +194,7 @@
    "source": [
     "One of the most known difficulties when working with natural data is that it's unstructured. For example, if you use it \"as is\" and extract tokens just by splitting the titles by whitespaces, you will see that there are many \"weird\" tokens like *3.5?*, *\"Flip*, etc. To prevent the problems, it's usually useful to prepare the data somehow. In this task you'll write a function, which will be also used in the other assignments. \n",
     "\n",
-    "**Task 1 (TextPrepare).** Implement the function *text_prepare* following the instructions. After that, run the function *test_test_prepare* to test it on tiny cases and submit it to Coursera."
+    "**Task 1 (TextPrepare).** Implement the function *text_prepare* following the instructions. After that, run the function *test_text_prepare* to test it on tiny cases and submit it to Coursera."
    ]
   },
   {