diff --git a/README.md b/README.md
index 7ba19f9..7b6593a 100755
--- a/README.md
+++ b/README.md
@@ -1,6 +1,7 @@
-<a href="https://www.buymeacoffee.com/tsunglung" target="_blank"><img src="https://cdn.buymeacoffee.com/buttons/default-orange.png" alt="Buy Me A Coffee" height="30" width="120"></a>
 
-Home assistant support for [Opendata CWB](https://opendata.cwb.gov.tw/index). [The readme in Traditional Chinese](https://github.com/tsunglung/OpenCWB/blob/master/README_zh-tw.md).
+
+Home assistant support for [Opendata CWB](https://opendata.cwb.gov.tw/index) (Taiwan Centtal Bureau).
+[中文版說明](https://github.com/tsunglung/OpenCWB/blob/master/README_zh-tw.md).
 
 
 This integration is based on [OpenWeatherMap](https://openweathermap.org) ([@csparpa](https://pypi.org/user/csparpa), [pyowm](https://github.com/csparpa/pyowm)) to develop.
@@ -11,29 +12,39 @@ You can install component with [HACS](https://hacs.xyz/) custom repo: HACS > Int
 
 Or manually copy `opencwb` folder to `custom_components` folder in your config folder.
 
-Then restart HA.
+And `do not forget` to restart Home Assistant.
 
-# Setup
+# Pre-reqirement
 
-**Apply a API key in Opendata CWB**
-1. Open the [Opendata CWB](https://opendata.cwb.gov.tw/devManual/insrtuction) Web Site
-2. Register your account
+**Apply a API key from Opendata CWB**
+1. Browse to [Opendata CWB](https://opendata.cwb.gov.tw/userLogin) account page.
+2. Login or [register an account](https://pweb.cwb.gov.tw/CWBMEMBER3/register/authorization).
 3. Get your personal API Key.
 
 # Config
 
-**Please use the config flow of Home Assistant**
+**Please follow the config flow of Home Assistant**
 
 
 1. With GUI. Configuration > Integration > Add Integration > OpneCWB
-   1. If the integration didn't show up in the list please REFRESH the page
-   2. If the integration is still not in the list, you need to clear the browser cache.
-2. Enter API key.
-3. Enter the location name of Taiwan. Please reference to the name in the [doc](https://opendata.cwb.gov.tw/opendatadoc/CWB_Opendata_API_V1.2.pdf) appendix A.
-   1. Some location name need to include the city name.
+   a. If the integration didn't show up in the list please REFRESH the page.
+   b. If the integration is still not in the list, you need to clear the browser cache.
+2. Enter API key from previous step.
+3. Enter the location name of Taiwan (in Chinese. XD). Please reference to the offical [documents](https://opendata.cwb.gov.tw/opendatadoc/CWB_Opendata_API_V1.2.pdf) appendix A.
+   a. Some location name need to include the city name.
+
+# Option
+
+1. You could setup for the scan interval. One call per hour or per day.
 
 Buy Me A Coffee
 
+If you think the add-on is useful for you, please consider to buy me a coffee for support my work.
+
+<a href="https://www.buymeacoffee.com/tsunglung" target="_blank"><img src="https://cdn.buymeacoffee.com/buttons/default-orange.png" alt="Buy Me A Coffee" height="30" width="120"></a>
+
+And for people live in Taiwan, you could use services below since Paypal might not wirk due to the goverment policy.
+
 |  LINE Pay | LINE Bank | JKao Pay |
 | :------------: | :------------: | :------------: |
 | <img src="https://github.com/tsunglung/OpenCWB/blob/master/linepay.jpg" alt="Line Pay" height="200" width="200">  | <img src="https://github.com/tsunglung/OpenCWB/blob/master/linebank.jpg" alt="Line Bank" height="200" width="200">  | <img src="https://github.com/tsunglung/OpenCWB/blob/master/jkopay.jpg" alt="JKo Pay" height="200" width="200">  |