References tot 3.4 instead of 3.3

In chapter 3 you reference to documentation of 3.3, while elsewhere you reference to 3.4. A small inconsistency in your otherwise great course :)

Author: mhkuu

Chapter 3 - Text analysis.ipynb

@@ -504,7 +504,7 @@
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "**1)** Write a function `remove_txt` that takes as argument a string and some extension that you want to remove. It should return the string without the extension. Tip: use the function `splitext` from the `os.path` module. Look up the documentation [here](http://docs.python.org/3.3/library/os.path.html#os.path.splitext)."
+      "**1)** Write a function `remove_txt` that takes as argument a string and some extension that you want to remove. It should return the string without the extension. Tip: use the function `splitext` from the `os.path` module. Look up the documentation [here](http://docs.python.org/3.4/library/os.path.html#os.path.splitext)."
      ]
     },
     {
@@ -528,7 +528,7 @@
      "cell_type": "markdown",
      "metadata": {},
      "source": [
-      "**2)** Write a function `remove_dir` that takes as argument a filepath and removes the directory from a filepath. Tip: use the function `basename` from the `os.path` module. Look up the document [here](http://docs.python.org/3.3/library/os.path.html#os.path.basename)"
+      "**2)** Write a function `remove_dir` that takes as argument a filepath and removes the directory from a filepath. Tip: use the function `basename` from the `os.path` module. Look up the document [here](http://docs.python.org/3.4/library/os.path.html#os.path.basename)"
      ]
     },
     {
@@ -1267,4 +1267,4 @@
    "metadata": {}
   }
  ]
-}
+}