I want the changes in the master repository to merge into my branch
It is my understanding that you don't want to learn git rather than use its main capability. In that case I'm going to go against the crowd who recommends command line and ask why aren't you using your IDE's vcs integration.
Every major IDE (IntelliJ, Eclipse etc) has the option of pushing, commiting etc with a simple button. That's what I do anyway :P :)