Mention that libdbus is a new dependency

README.md

@@ -27,6 +27,7 @@ These are the dependencies needed to build GPU Screen Recorder UI:
 * linux-api-headers
 * libpulse (libpulse-simple)
 * libdrm
+* libdbus
 * wayland (wayland-client, wayland-egl, wayland-scanner)
 * setcap (libcap)
 

tools/gsr-kwin-helper/main.cpp

@@ -220,7 +220,7 @@ public:
     }
 };
 
-int main(int argc, char** argv) {
+int main() {
     GsrKwinHelper helper;
     
     if (!helper.init()) {