docs(readme): 实际效果示例换成客户回邮件用例（中英双语）

把「一个实际例子 / A concrete example」从未充分测试的 SQL→ChatGPT 演示
换成经过测试的客户回邮件用例：口语输入 → 结构化清理稿，更贴合
OpenLess「只清理你的话、不替你作答」的定位，宣传与实际相符。
收束句由「回车发送」改为「粘贴给 ChatGPT/Claude 续写」，标语保持不变。

README.md

@@ -122,20 +122,21 @@ Two features define how OpenLess feels in daily use:
 
 Hold the hotkey and say:
 
-> uh… so… I want ChatGPT to write me a SQL query, from the orders table get last month's orders, group by customer, sort by amount desc, top ten
+> uh… so… I need to reply to the client about the proposal they sent last time, we talked it over internally and the overall direction is fine but a few details need changing, first the delivery timeline is too tight we'd like to push it back two weeks, second on budget their quote came in about twenty percent higher than we expected can we negotiate that, and overall we're positive about working together so reassure them, keep the tone polite not too blunt
 
 Release the hotkey. A moment later, your input box reads:
 
 ```text
-Please write a SQL query that:
+Reply to the client about the proposal they sent. After internal discussion, the overall direction is fine, but a few details need adjusting:
 
-- Pulls orders from last month from the `orders` table.
-- Groups by customer.
-- Sorts by total amount, descending.
-- Returns the top 10 rows only.
+1. Delivery timeline
+   (a) The current timeline is too tight; we'd like to extend it by two weeks.
+2. Budget
+   (a) Their quote is about 20% higher than we expected — can we renegotiate?
+Keep the overall message positive about the partnership, and keep the tone polite rather than blunt.
 ```
 
-No edits are required — press Enter and send. That is the core idea: **compose prompts by speaking, faster and more cleanly than typing them.**
+No edits are required — paste it into ChatGPT or Claude and let it draft the email. That is the core idea: **compose prompts by speaking, faster and more cleanly than typing them.**
 
 ## Why OpenLess is open source
 

README.zh.md

@@ -122,20 +122,21 @@ OpenLess 是一款跨平台(macOS 与 Windows)语音输入应用,是 [Typeless](
 
 按住快捷键,说:
 
-> 嗯…那个…我想让 ChatGPT 帮我写个 SQL,从 orders 表里取上个月的订单,按客户分组,金额从大到小排,取前十条
+> 嗯…那个,我要给客户回个邮件,就是上次他们提的那个方案嘛,我们内部讨论了一下觉得大方向没问题,但是有几个细节要改,第一个就是交付时间太紧了我们希望延两周,第二个是预算那块他们报的价格比我们预期高了大概百分之二十能不能谈一下,然后整体合作意向是积极的让他们放心,语气客气一点别太生硬
 
 松开快捷键。片刻之后,你的输入框里出现:
 
 ```text
-请写一条 SQL 查询,要求:
+给客户回邮件,关于上次他们提的方案,我们内部讨论后认为大方向没问题,但有几个细节需要调整:
 
-- 从 `orders` 表中取出上个月的订单。
-- 按客户分组。
-- 按总金额降序排列。
-- 仅返回前 10 行。
+1. 交付时间
+   (a) 目前交付时间太紧,希望延长两周。
+2. 预算
+   (a) 他们的报价比我们预期高了大约 20%,能否再谈一下？
+整体合作意向是积极的,语气上请客气一点,不要太生硬。
 ```
 
-无需任何修改——按下回车发送即可。这就是核心理念:**用嘴写提示词,比打字更快、更干净。**
+无需任何修改——直接粘贴给 ChatGPT 或 Claude,让它替你把邮件写完。这就是核心理念:**用嘴写提示词,比打字更快、更干净。**
 
 ## 为什么 OpenLess 选择开源