Deep dive into the HTTP/2: history of HTTP protocol, why HTTP/2 is better, HTTP/2 features and HTTP/2 performance – all that in one big nice article How HTTP/2 Will Speed Up the Web. So, keep up with the rapidly changing Web!
Now, after reading this, go and try to install it on current stable Linux and try how it works with modern browsers. You are lucky, if your Linux has openssl 1.0.2 with ALPN protocol support.