There is a well designed tutorial on Youtube, helped me a lot to get started. https://www.youtube.com/playlist?list=PL6D474E721138865A https://www.youtube.com/

There is a well designed tutorial on Youtube, helped me a lot to get started. https://www.youtube.com/playlist?list=PL6D474E721138865A https://www.youtube.com/playlist?list=PL6D474E721138865A