docs/guide/README.md - typo fixed [ci skip]
docs/guide/README.md - typo fixed [ci skip]

 close #13

andrew-kamenchuk/yii2-twig,quantum13/yii2-twig,quantum13/yii2-twig,pana1990/yii2-twig,andrew-kamenchuk/yii2-twig,yiisoft/yii2-twig,pana1990/yii2-twig,yiijan/yii2-twig,yiijan/yii2-twig