change some numbers in docs

README.md

@@ -4,7 +4,7 @@
 
 # ![brpc](docs/images/logo.png)
 
-A industrial-grade RPC framework used throughout [Baidu](http://ir.baidu.com/phoenix.zhtml?c=188488&p=irol-irhome), with **600,000+** instances(not counting clients) and **500+** kinds of services, called "**baidu-rpc**" inside Baidu. Only C++ implementation is opensourced right now.
+A industrial-grade RPC framework used throughout [Baidu](http://ir.baidu.com/phoenix.zhtml?c=188488&p=irol-irhome), with a million+ instances(not counting clients) and thousands kinds of services, called "**baidu-rpc**" inside Baidu. Only C++ implementation is opensourced right now.
 
 You can use it to:
 * Build a server that can talk in multiple protocols (**on same port**), or access all sorts of services

README_cn.md

@@ -4,7 +4,7 @@
 
 # ![brpc](docs/images/logo.png)
 
-百度内最常使用的工业级RPC框架, 有超过**600,000**个实例(不包含client)和**500**多种服务, 在百度内叫做"**baidu-rpc**". 目前只开源C++版本。
+百度内最常使用的工业级RPC框架, 有超过一百万个实例(不包含client)和上千种多种服务, 在百度内叫做"**baidu-rpc**". 目前只开源C++版本。
 
 你可以使用它：
 

docs/cn/overview.md

@@ -36,7 +36,7 @@ RPC不是万能的抽象，否则我们也不需要TCP/IP这一层了。但是
 
 # 什么是![brpc](../images/logo.png)?
 
-百度内最常使用的工业级RPC框架, 有超过**600,000**个实例(不包含client)和**500**多种服务, 在百度内叫做"**baidu-rpc**". 目前只开源C++版本。
+百度内最常使用的工业级RPC框架, 有超过一百万个实例(不包含client)和上千种服务, 在百度内叫做"**baidu-rpc**". 目前只开源C++版本。
 
 你可以使用它：
 

docs/en/overview.md

@@ -34,7 +34,7 @@ Common doubts on RPC:
 
 # What is ![brpc](../images/logo.png)?
 
-A industrial-grade RPC framework used throughout [Baidu](http://ir.baidu.com/phoenix.zhtml?c=188488&p=irol-irhome), with **600,000+** instances(not counting clients) and **500+** kinds of services, called "**baidu-rpc**" inside Baidu. Only C++ implementation is opensourced right now.
+A industrial-grade RPC framework used throughout [Baidu](http://ir.baidu.com/phoenix.zhtml?c=188488&p=irol-irhome), with 1 million+ instances(not counting clients) and thousands kinds of services, called "**baidu-rpc**" inside Baidu. Only C++ implementation is opensourced right now.
 
 You can use it to:
 * Build a server that can talk in multiple protocols (**on same port**), or access all sorts of services