updated README.md

README.md

@@ -125,11 +125,9 @@ export OPENID="your weixin openid"
 
 ```
 
-Last, you have to ** open a new terminal tag ** (Reload bash_profile), and run `rspec .`
+Last, you have to ** open a new terminal tag **(Reload bash_profile)** , and run `rspec .`
 
-
-
-##
+## 多用户微信营销平台的对接
 
 > 对于多用户微信营销平台的对接，需要把每次的expired_at, access_token保存在Redis中,每次使用，则可以从Redis中获取expired_at和access_token, 即 `@client = WeixinAuthorize::Client.new(appid, appsecret, expired_at, access_token)`, 获取access_token，则仍然是：`@client.get_access_token`来获取.