Update README [skip ci]

README.md

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 A hard-working bot that captures Apple software updates and pushes notifications, developed by Hackl0us.
 
 ## License
-Open source license (GPLv3) for this project has legal effects, so please be sure to comply with it.
+Open source license (GPLv3) for this project has legal effects, so please be sure to comply with it.
+
+## Configuration
+### SQLite database initialization
+Initialize the SQLite 3 database with the file under `res/init_db.sql`.
+
+Put the database file at under the `res` folder, name the file `apple-spyder.db`.
+
+### Configuration
+Please put the configuration file at under the `res` folder, name the file `config.yaml`.
+
+```yaml
+# All the following parameters are randomly generated. Please replace them with real ones
+weibo:
+  enable: false
+  app-key: 6677073540
+  app-secret: 2h152qzt4xcg9fyx2qt44xwlwn2w7kwb
+  redirect-uri: https://hackl0us.com
+  access-token: 2.00WM2onwpur1qlgeq91xryamuhfk2i
+  rip: 213.1.207.236 # Your real IP address
+
+telegram:
+  enable: true
+  bot-name: Apple Spyder Test Bot
+  bot-token: 4934421727:ZRXNwextc2K_o4j150Nf7u-O2k6CMQVRj4
+  chat-id: 4543069976
+
+url:
+  apple-developer-rss: https://developer.apple.com/news/releases/rss/releases.rss
+```
+
+
+### Docker Compose
+```yaml
+services:
+  apple-spyder:
+    image: hackl0us/apple-spyder
+    container_name: apple-spyder
+    restart: always
+    volumes:
+      - /folder_to_config/res:/usr/src/app/res
+    ports:
+      - 5001:8888
+```
+
+## API Call
+After you successfully run the App, you can refer to the APIs below to perform the corresponding requests:
+
+* `/apple-spyder/software-release`: Check Apple Developer RSS feed.
+* `/apple-spyder/accessory-ota-update`: Check for Apple accessories OTA updates.