diff --git a/README.md b/README.md
index 8f8157b..cb60d73 100644
--- a/README.md
+++ b/README.md
@@ -1,54 +1,16 @@
 # TyTM (Typora Theme Manager)
 
-A theme package manager for Typora. It's currently in progress, not so user friendly.
+A theme package manager for Typora.
 
 Current features:
 - [x] add a theme
-- [x] remove a theme
-- [x] list installed themes
+- [ ] remove a theme
+- [ ] list installed themes
 
 ## Usage:
-```bash
-./tytm.exe update
-./tytm.exe add <THEME_ID>
-./tytm.exe add <THEME_ID> --sub <SUB_THEME_ID>
-```
-<THEME_ID> will be theme's name but use lowercase and use dash to replace whitespace. Ex: "GitHub Night" has id "github-night"
-```bash
-./tytm.exe rm <THEME_ID>
-./tytm.exe rm <THEME_ID> --sub <SUB_THEME_ID>
-```
-
-## Build
-1. install rust (https://www.rust-lang.org/tools/install)
-2. `cargo build --release`
-
-## Contribute: 
 
-### Add Package Manifest
-Refer to `manifest/`. Readme may be outdated.  
-An example manifest (OneDark). The file name is same as the id.
-```json
-{
-    "id": "onedark",
-    "name": "Blackout",
-    "version": "1.0.7",
-    "source": {
-        "type": "Zip",
-        "value": {
-            "url": "https://github.com/obscurefreeman/typora_theme_blackout/releases/download/V1.0.7/blackout_theme.zip",
-            "content": "./",
-            "excludes": []
-        }
-    },
-    "assets": [ ... ],
-    "pkgs": [ ... ]
-}
+```shell
+./tytm add <URL>
 ```
-"id" will be theme's name but use lowercase and use dash to replace whitespace. Ex: "GitHub Night" has id "github-night"  
-"type" can be "Zip" or "Git"
-- "Zip": download a zip file from web
-- "Git": clone a repository
 
-"content" means the root folder of css and assets.  
-"excludes" means files in "content" but unnecessary, such as readme or license. You may also refer to `manifest/`.
+which the url points to the git/zip file of the theme.