Update README.md

Author: tsuzu

README.md

@@ -4,10 +4,43 @@ Broadcast messages that someone joined/left the game.
 
 ![game screen that shows log of joined:Tsuzu](./docs/example.png)
 
+## Usage
+### Enable RCON of PalWorld server
+* Open `~/Steam/steamapps/common/PalServer/Pal/Saved/Config/LinuxServer/PalWorldSettings.ini`
+* Set `RCONEnabled="True"`
+* Set `AdminPassword="your_random_password"`
+* Restart the PalWorld server
+
+* Ref: https://tech.palworldgame.com/optimize-game-balance
+
+### Docker
+```
+docker run --name palog -e RCON_ENDPOINT={PalWorldServerIP}:25575 -e RCON_PASSWORD={AdminPassword you set above} ghcr.io/miscord-dev/palog:v0.0.5
+```
+
+### Binary installation
+#### Install palog
+* Use the following guide of installation
+* (optional) Install `uconv`
+    * Non-ascii characters are converted via `uconv -x latin`
+    * On Debian/Ubuntu; `apt-get install -y icu-devtools`
+
+#### Set environment variables
+* RCON_ENDPOINT
+    * If you run palog on the same server as the PalWorld server, the value is `127.0.0.1:25575`
+* RCON_PASSWORD
+    * The password you set in the earlier step
+* For other options, please check the [Environemnt Variables](#environment-variables) section
+
+#### Launch palog
+```
+$ ./palog
+```
+
 ## Installation
 ### Docker(Recommended)
 ```
-docker pull ghcr.io/miscord-dev/palog:v0.0.3
+docker pull ghcr.io/miscord-dev/palog:v0.0.5 # or main
 ```
 
 ### Download binary
@@ -22,5 +55,5 @@ docker pull ghcr.io/miscord-dev/palog:v0.0.3
 
 ## Known issues
 * If the message is split via whitespaces, `Broadcast` sends only the first segment
-* CKJ characters are corrupted
+* Non-ascii are corrupted
     * https://github.com/miscord-dev/palog/issues/6