add new file go/l5.go for work env file

go/go.sum

@@ -0,0 +1,2 @@
+github.com/joho/godotenv v1.5.1 h1:7eLL/+HRGLY0ldzfGMeQkb7vMd0as4CfYvUVzLqw0N0=
+github.com/joho/godotenv v1.5.1/go.mod h1:f4LDr5Voq0i2e/R5DDNOoa2zzDfwtkZa6DnEwAbqwq4=

go/l5.go

@@ -0,0 +1,16 @@
+package main
+
+import (
+	"fmt"
+	"os"
+	"github.com/joho/godotenv"
+)
+
+func main() {
+	err := godotenv.Load()
+	if err != nil {
+		fmt.Println("не")
+	}
+	api := os.Getenv("api_key")
+	fmt.Println(api)
+}