update go docs and examples

docs/tools/sdk/go/Reference/Beta/Methods/CustomPasswordInstructionsAPI.md

@@ -74,7 +74,7 @@ import (
 )
 
 func main() {
-    data := []byte(`{
+    custompasswordinstruction := []byte(`{
           "pageContent" : "Please enter a new password. Your password must be at least 8 characters long and contain at least one number and one letter.",
           "pageId" : "change-password:enter-password",
           "locale" : "en"
@@ -82,7 +82,7 @@ func main() {
 
   
    var customPasswordInstruction beta.CustomPasswordInstruction
-   if err := json.Unmarshal(data, &customPasswordInstruction); err != nil {
+   if err := json.Unmarshal(custompasswordinstruction, &customPasswordInstruction); err != nil {
     fmt.Println("Error:", err)
     return
    }