Update README.md

Author: wkh237

README.md

@@ -393,25 +393,25 @@ RNFetchBlob.config({
 
 File access APIs were made when developing `v0.5.0`, which helping us write tests, and was not planned to be a part of this module. However I realized that, it's hard to find a great solution to manage cached files, every one who use this moudle may need those APIs for there cases.
 
-Here's the list of `fs` APIs
-
-- dirs
-- createFile
-- readFile
-- writeFile
-- appendFile
-- readStream
-- writeStream
-- unlink
-- mkdir
-- ls
-- mv
-- cp
-- exists
-- isDir
-- lstat
-- stat
-- scanFile (Android Only)
+File Access APIs
+
+- [dirs](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#dirs)
+- [createFile](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#createfilepath-data-encodingpromise)
+- [writeFile (0.6.0)](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#writefilepathstring-contentstring--array-encodingstring-appendbooleanpromise)
+- [appendFile (0.6.0) ](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#appendfilepathstring-contentstring--array-encodingstringpromise)
+- [readFile (0.6.0)](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#readfilepath-encodingpromise)
+- [readStream](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#readstreampath-encoding-buffersizepromise)
+- [writeStream](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#writestreampathstring-encodingstring-appendbooleanpromise)
+- [unlink](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#unlinkpathstringpromise)
+- [mkdir](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#mkdirpathstringpromise)
+- [ls](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#lspathstringpromise)
+- [mv](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#mvfromstring-tostringpromise)
+- [cp](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#cpsrcstring-deststringpromise)
+- [exists](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#existspathstringpromise)
+- [isDir](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#isdirpathstringpromise)
+- [stat](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#statpathstringpromise)
+- [lstat](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#lstatpathstringpromise)
+- [scanFile (Android only)](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API#scanfilepathstringpromise-androi-only)
 
 See [File API](https://github.com/wkh237/react-native-fetch-blob/wiki/File-System-Access-API) for more information