update to fixup some race conditions

doc.go

@@ -0,0 +1,31 @@
+// Package jety provides configuration management supporting JSON, ENV, TOML, and YAML formats.
+//
+// It offers viper-like AutomaticEnv functionality with minimal dependencies, allowing
+// configuration to be loaded from files and environment variables with automatic merging.
+//
+// Configuration sources are layered with the following precedence (highest to lowest):
+//   - Values set via Set() or SetString()/SetBool()
+//   - Environment variables (optionally filtered by prefix)
+//   - Values from config file via ReadInConfig()
+//   - Default values set via SetDefault()
+//
+// Basic usage:
+//
+//	jety.SetConfigFile("/etc/myapp/config.yaml")
+//	jety.SetConfigType("yaml")
+//	jety.SetEnvPrefix("MYAPP_")
+//	jety.SetDefault("port", 8080)
+//
+//	if err := jety.ReadInConfig(); err != nil {
+//	    log.Fatal(err)
+//	}
+//
+//	port := jety.GetInt("port")
+//
+// For multiple independent configurations, create separate ConfigManager instances:
+//
+//	cm := jety.NewConfigManager()
+//	cm.SetConfigFile("/etc/myapp/config.toml")
+//	cm.SetConfigType("toml")
+//	cm.ReadInConfig()
+package jety