Hi…I am a newbie with regard to the Yii framework…I am trying to install a comment extension to my application…I found this extension called "itsurka/yii2-simple-comment". I tried installing the extension using composer however I am not able to complete the migration. As the extension page says that I need to "Apply migrations from yii2-simple-comment/migrations folder". I apply the command "yiic migrate" from the migrations folder of the extension and I get the error "Yiic not recognized as an internal command". Can some one tell me the what would be the command to migrate from the extension.