Update README.md

Author: redside100

README.md

@@ -1,3 +1,39 @@
 # LeetcodeAP
 
-An Archipelago Hint Client for Leetcode.
+An Archipelago hint client for Leetcode.
+
+## Installation
+
+Download `leetcode-ap-win.zip` in the latest release [here](https://github.com/redside100/leetcode-ap/releases/tag/1.0.0).
+
+Unpack the zip file, then run `LeetcodeAP.exe`.
+
+For Linux and Mac support, consider building it from the source on the respective platform.
+
+```bash
+npm install
+npm run build:linux
+npm run build:mac
+```
+
+
+## Usage
+
+Connect to the Archipelago server. You'll need:
+
+  - The server host
+  - The server port
+  - The slot you want to hint for
+  - The optional server password
+  - Your **Leetcode** username for tracking
+
+Once connected, start solving Leetcode questions! Do note that at the time of connecting, your last 20 submissions are already taken into account, so make sure to solve new questions.
+
+Each new **accepted** submission will grant a hint to the slot you're connected to.
+
+Each **rejected** submission will cause a death link trigger, if the "Death Link" option is checked.
+
+## Gallery
+![image](https://github.com/user-attachments/assets/fb17267d-f334-4eb7-8f33-6fc011afbd0b)
+
+![image](https://github.com/user-attachments/assets/fe407515-408b-4ac7-9abd-eed0fac584c4)