nltk/nltk_book — pull request #10 by kolvia (2013-07-24 21:38:21+00:00)
Title: Fix reference to nonexistant method in Chapter 5

Chapter 5 contained a refence to a nonexistant method:
```...or a regular expression, e.g. ``nltk.help.upenn_brown_tagset('NN.*')``.```
Changed to ``nltk.help.upenn_tagset('NN.*')``.