add rtc github.com

Author: yngrtc

index.html

@@ -46,6 +46,7 @@
       <div class="navbar-brand">
         <a class="navbar-item" href="https://github.com/webrtc-rs/webrtc/"><img src="./res/webrtc.rs.ico" width="28" height="28"><strong>&nbsp;WebRTC Github</strong></a>
         <a class="navbar-item" href="https://github.com/webrtc-rs/sfu"><img src="./res/sfu-rs.ico" width="28" height="28"><strong>&nbsp; SFU Github</strong></a>
+        <a class="navbar-item" href="https://github.com/webrtc-rs/rtc"><img src="./res/rtc.ico" width="28" height="28"><strong>&nbsp; RTC Github</strong></a>
         <div class="navbar-item">
           <iframe src="https://github.com/sponsors/webrtc-rs/button" title="Sponsor webrtc-rs" height="35" width="116"
             style="border: 0;"></iframe>