Comment fixes.

src/app/spreed-speakfreely-server/connection.go

@@ -268,7 +268,7 @@ func (c *Connection) writePump() {
 	}
 }
 
-// Write ping message
+// Write ping message.
 func (c *Connection) ping() error {
 	log.Println("Sending ping", c.Idx)
 	defer func() {

src/app/spreed-speakfreely-server/hub.go

@@ -227,7 +227,7 @@ func (h *Hub) broadcastHandler(m *MessageRequest) {
 			}
 			ec, ok := h.connectionTable[id]
 			if !ok {
-				// Connection gone
+				// Connection gone.
 				h.mutex.RUnlock()
 				continue
 			}