Update registry.h

include/spdlog/details/registry.h

@@ -6,7 +6,7 @@
 #pragma once
 
 // Loggers registy of unique name->logger pointer
-// An attempt to create a logger with an alreasy existing name will be ignored
+// An attempt to create a logger with an already existing name will be ignored
 // If user requests a non existing logger, nullptr will be returned
 // This class is thread safe