update credits

src/gui/about.cpp

@@ -160,6 +160,7 @@ const char* aboutLine[]={
   "libsndfile by Erik de Castro Lopo",
   "Portable File Dialogs by Sam Hocevar",
   "Native File Dialog by Frogtoss Games",
+  "PortAudio",
   "RtMidi by Gary P. Scavone",
   "FFTW by Matteo Frigo and Steven G. Johnson",
   "backward-cpp by Google",

src/main.cpp

@@ -166,6 +166,7 @@ TAParamResult pVersion(String) {
   printf("- libsndfile by Erik de Castro Lopo and rest of libsndfile team (LGPLv2.1)\n");
   printf("- SDL2 by Sam Lantinga (zlib license)\n");
   printf("- zlib by Jean-loup Gailly and Mark Adler (zlib license)\n");
+  printf("- PortAudio (PortAudio license)\n");
   printf("- RtMidi by Gary P. Scavone (RtMidi license)\n");
   printf("- backward-cpp by Google (MIT)\n");
   printf("- Dear ImGui by Omar Cornut (MIT)\n");