diff --git a/README.md b/README.md
index 9df4314..5a575e7 100644
--- a/README.md
+++ b/README.md
@@ -3,13 +3,36 @@ A simple downloader to  download images from kemono.party
 
 ## Flag Option
 
+### Cookie File
+only needed if you want to download favorite creators or posts  
+  
+`--cookie PATH`  
+cookie file, default is cookies.txt (value separate by whitespace)  
+format:  
+
+| Domain        | Include subdomains | Path | Secure | Expiry     | Name        | Value   |
+|---------------|--------------------|------|--------|------------|-------------|---------|
+| .kemono.party | FALSE              | /    | TRUE   | 1706755572 | kemono_auth | <value> |
+
+you can get it easily by using Chrome extension [Get cookies.txt](https://chrome.google.com/webstore/detail/get-cookiestxt/bgaddhkoddajcdgocldbbfleckgcbcid)
+#### Windows
+windows can detect the cookie file automatically  
+`--cookie-browser string`  
+which browser to use, default is chrome (supported: chrome, firefox, edge , opera, vivaldi)
+
 ### Download Option
 `--link [<urls>]`  
-download link, should be same site, separate by comma  
+download link, separate by comma  
 `--creator [<service>:<id>]`  
 download creators, separate by comma  
 `--banner bool`  
-download banner, default is false
+download banner, default is false (kemono only)  
+`fav-site string`  
+download fav-site (e.g. kemono, etc.), separate by comma.  
+`--fav-creator bool`  
+download favorite creator, default is false  
+`--fav-post bool`  
+download favorite post, default is false
 
 ### Post Filter Option
 `--first int`  
@@ -34,6 +57,10 @@ download post updated after date
 download post with extension, separate by comma  
 `--extensionExcept [<ext>]`  
 download post without extension, separate by comma  
+`--max-size string`  
+download post with size less than max-size (e.g. 1 MB, 1KB, 1.5 gb, etc.)  
+`--min-size string`  
+download post with size greater than min-size (e.g. 1 MB, 1KB, 1.5 gb, etc.)
 
 ### Downloader Option
 `--output PATH`