updated README.md

README.md

@@ -85,27 +85,16 @@ Basic SigFn usage in C++. It is copied from `pause.cpp` in the
 ```c++
 #include <sigfn.hpp>
 #include <iostream>
-#include <thread>
 
 int main(int argc, const char **argv)
 {
-    bool loop;
-    // set callback for SIGINT
-    sigfn::handle(SIGINT, [&](int signum) {
-        std::cout << std::endl << "Received signal: " << signum << std::endl;
-        loop = false;
-    });
-    
     // notify user that the program is "paused"
     std::cout << "Paused. Press Ctrl+C to exit." << std::endl;
     
-    // sleep loop until we receive the signal
-    loop = true;
-    while(loop)
-    {
-        // sleep for 100ms
-        std::this_thread::sleep_for(std::chrono::milliseconds(100));
-    }
+    sigfn::wait({SIGINT});
+
+    std::cout << std::endl << "Received signal: SIGINT" << std::endl;
+
     return 0;
 }
 ```