[UK][Guide] typos and updates
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[EN][Guide] typos
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Merge pull request #2853 from yiiframework-com-ua/uk_docs

[Guide] Updates (EN, UK)
Fix german documentation misspelling
Merge pull request #2858 from kokomoDev/doc

Fix german documentation misspelling
Merge branch 'master' of git://github.com/yiisoft/yii into 2653-update-markdown-1.3