Update README.md

README.md

@@ -137,7 +137,7 @@ void rotating_example()
 {
     // Create a file rotating logger with 5mb size max and 3 rotated files
     auto max_size = 1048576 * 5;
-    auot max_files = 3;
+    auto max_files = 3;
     auto rotating_logger = spdlog::rotating_logger_mt("some_logger_name", "logs/rotating.txt", max_size, max_files);
 }
 ```