Fixed typo.
Merge pull request #734 from TossShinHwa/patch-1

Fixed typo.
Merge pull request #733 from daftano/master

[it] update chapters 2 and 6
Translate lost of paragraphs.
Merge pull request #736 from TossShinHwa/master

Translate lost of paragraphs.
[it] update chapter2

Translate commit 60e2618