Update comment

example/example.cpp

@@ -44,7 +44,7 @@ int main(int, char *[])
     // Backtrace support
     // Loggers can store in a ring buffer all messages (including debug/trace) for later inspection.
     // When needed, call dump_backtrace() to see what happened:
-    spdlog::enable_backtrace(10); // create ring buffer with capacity of 10  messages
+    spdlog::enable_backtrace(10); // create ring buffer to store latest 10 messages
     for (int i = 0; i < 100; i++)
     {
         spdlog::debug("Backtrace message {}", i); // not logged..