One very small addition to the very useful and detailed corection that youve already received.  In the second sentence, it should read, "I'm living in a suburb of Moscow."

A short intro about myself

Hello everyone,

My name is Alexander. I'm 29. I'm living in Moscow suburb of Moscow. I'm a project manager for power grid projects. I'm marred married (spello) and I have a daughter. Her name is Elizabeth but we call her Liza. Liza is six. My wife's name is Marina.

This is my smal introducing brief introduction. Stay turned...