[sr-dev] [kamailio/kamailio] nsq module doc (#905)

- Please add more details on the dependency libraries. - There are also a lot of spelling errors - Document return value of function - Event routes needs to have their own section (like other modules) and not only be mentioned in the introduction - There is no real explanation of what the transformation actually does, please add some text - The pseudo variable needs an explanation too, there is obviously some syntax to it with two arguments

Thank you for updating this in good time for the coming release!