[UK][Guide] Fixing typos
Merge pull request #2595 from yiiframework-com-ua/uk_docs

[UK][Guide] Fixing typos
[UK][Guide] Fixing typos
Merge pull request #2596 from yiiframework-com-ua/uk_docs

[UK][Guide] Fixing typos
Update yii.php

Polish grammar correction
Merge pull request #2600 from HotscriptGG/patch-1

Update yii.php