docs: refine readme

README.md

@@ -4,7 +4,7 @@ This is a library for integrating with AliCloud live-streaming platform - [Apsar
 
 Integration progress:
 - [x] [get domains](https://www.alibabacloud.com/help/doc-detail/88332.htm?spm=a2c63.p38356.b99.143.17872c80zDTOBs)
-- TBD
+- [ ] TBD
 
 ### How to use
 ```js
@@ -36,18 +36,18 @@ const domainsData: ApsaraDomainsData = await apsara.getDomains()
 // PageNumber: 1
 ```
 
-### Document
+### Specs
 
 #### Apsara(options [,logger])
 - **options**, required
-  - accessKeyId: string, required
-  - accessKeySecret: string, required
-  - baseUrl?: string, default `'https://live.aliyuncs.com'`
-  - timeout?: number, default `3000`
-  - version?: string, default `'2016-11-01'`
-  - signatureMethod?: string, default `'HMAC-SHA1'`
-  - signatureVersion?: string, default `'1.0'`
-  - format?: string, default `'json'`
+  - `accessKeyId`: string, required
+  - `accessKeySecret`: string, required
+  - `baseUrl`?: string, by default `'https://live.aliyuncs.com'`
+  - `timeout`?: number, by default `3000`
+  - `version`?: string, by default `'2016-11-01'`
+  - `signatureMethod`?: string, by default `'HMAC-SHA1'`
+  - `signatureVersion`?: string, by default `'1.0'`
+  - `format`?: string, by default `'json'`
 - **logger**, optional, WinstonLogger/BunyanLogger/Console
 
 #### [Apsara.getDomains()](https://www.alibabacloud.com/help/doc-detail/88332.htm?spm=a2c63.p38356.b99.143.17872c80zDTOBs)
@@ -59,4 +59,4 @@ yarn
 yarn test
 ```
 
-### MIT License
+### [MIT License](https://github.com/CCharlieLi/alicloud-apsara/blob/master/License)