Translate 7.9 "Rerere".
Fixed typo

Fixed typo.
"Если  если" replaced by "Если".
Fixed typo

Fixed typo. "Сдесь" replaced by "Здесь".
Единая точка краха → Единая точка отказа

"Единая точка отказа" является устоявшимся техническим термином.
Translate 7.9 "Rerere": fix errors according with review.
Merge pull request #30 from lyobzik/7.9-rerere

Translate 7.9 "Rerere".
Merge pull request #37 from askras/master

Fixed typo
Translate part of ch1 - Getting help

Took the translation of the first version of the book
Merge pull request #39 from askras/master

Translate part of ch1 - Getting help
Translate appendix A - Git Guis