Update language strings.

resources/lang/zh_CN/validation.php

@@ -130,6 +130,7 @@ return [
     'amount_zero'                    => '总金额不能为零。',
     'current_target_amount'          => 'The current amount must be less than the target amount.',
     'unique_piggy_bank_for_user'     => '存钱罐的名称必须是独一无二的。',
+
     'secure_password'                => '这不是一个安全的密码，请重试一次。如需更多讯息，请访问 https://bit.ly/FF3-password-security',
     'valid_recurrence_rep_type'      => '对定期重复交易是无效的重复类型。',
     'valid_recurrence_rep_moment'    => '对此重复类型是无效的重复时刻。',
@@ -200,4 +201,8 @@ return [
     'gte.file'    => ':attribute 必须大于或等于 :value Kb',
     'gte.string'  => ':attribute 必须大于或等于 :value 字符。',
     'gte.array'   => ':attribute 必须具有 :value 项或更多',
+
+    'amount_required_for_auto_budget' => 'The amount is required.',
+    'auto_budget_amount_positive'     => 'The amount must be more than zero.',
+    'auto_budget_period_mandatory' => 'The auto budget period is a mandatory field.',
 ];