Revert "Update README.md"

README.md

@@ -30,8 +30,6 @@ package main
 
 import (
     "fmt"
-    "os"
-    
     "github.com/Luxurioust/excelize"
 )
 
@@ -39,7 +37,6 @@ func main() {
     xlsx, err := excelize.CreateFile()
     if err != nil {
         fmt.Println(err)
-        os.Exit(1)
     }
     xlsx.NewSheet(2, "Sheet2")
     xlsx.NewSheet(3, "Sheet3")
@@ -48,7 +45,6 @@ func main() {
     err = xlsx.WriteTo("/home/Workbook.xlsx")
     if err != nil {
         fmt.Println(err)
-        os.Exit(1)
     }
 }
 ```
@@ -69,7 +65,6 @@ func main() {
     xlsx, err := excelize.OpenFile("/home/Workbook.xlsx")
     if err != nil {
         fmt.Println(err)
-        os.Exit(1)
     }
     xlsx.SetCellInt("Sheet2", "B2", 100)
     xlsx.SetCellStr("Sheet2", "C11", "Hello")
@@ -80,7 +75,6 @@ func main() {
     err = xlsx.Save()
     if err != nil {
         fmt.Println(err)
-        os.Exit(1)
     }
 }
 ```
@@ -99,7 +93,6 @@ func main() {
     xlsx, err := excelize.OpenFile("/home/Workbook.xlsx")
     if err != nil {
         fmt.Println(err)
-        os.Exit(1)
     }
     cell := xlsx.GetCellValue("Sheet2", "D11")
     fmt.Println(cell)
@@ -116,4 +109,4 @@ Some struct of XML originally by [tealeg/xlsx](https://github.com/tealeg/xlsx).
 
 ## Licenses
 
-This program is under the terms of the BSD 3-Clause License. See [https://opensource.org/licenses/BSD-3-Clause](https://opensource.org/licenses/BSD-3-Clause).
+This program is under the terms of the BSD 3-Clause License. See [https://opensource.org/licenses/BSD-3-Clause](https://opensource.org/licenses/BSD-3-Clause).