update contrib md

CONTRIBUTING.md

@@ -28,7 +28,7 @@ To develop douban.fm-electron on your machine, here are some tips:
 2. Install douban.fm-electron dependencies
 
    ```bash
-   npm install --dev
+   npm install
    ```
 
 ## Unit testing
@@ -43,3 +43,6 @@ Use eslint and prettier.
 
 Use `electron-builder`:
 - for Mac, issue `npx electron-builder -m`
+- for Windows, issue `npx electron-builder -w --x64`
+
+Then find the installer under `./dist`

README.md

@@ -3,14 +3,16 @@ A tiny, elegant douban.fm desktop client developed with electron.
 
 ![此处配图 from doc]()
 
+If anything doesn't work, try refreshing!
+
 ## Features
 - login/logout, cookie saving
 - channels:
     - douban selected / 豆瓣精选
     - douban recommended / 豆瓣推荐
     - liked songs / 红心歌曲
     - personal channel / 私人频道
-- set window on top
+- set window on top / 置顶
 
 ## Shortcuts
 - pause or play: `space`

src/api/client.ts

@@ -166,11 +166,11 @@ class ApiClient {
   }
 
   public async downloadSong() {
-    return;
+    throw Error('not implemented');
   }
 
   public async downloadPlaylist() {
-    return;
+    throw Error('not implemented');
   }
 }