fix: update readme

README.md

@@ -14,6 +14,57 @@ This repository uses the Go standard layout described at https://github.com/gola
 
 https://github.com/gorcon/rcon is used to connect to the RCON. The system expects the user provide a RCON_ADDRESS, and RCON_PASSWORD environment flag.
 
+## Usage
+
+### Environment Variables
+
+The mcgod application requires the following environment variables to be set:
+
+- `RCON_ADDRESS` - The address of the Minecraft server's RCON (e.g., "localhost:25575")
+- `RCON_PASSWORD` - The password for RCON access
+- `RCON_DEPLOYMENT` - Kubernetes deployment name for log monitoring (optional)
+- `RCON_NAMESPACE` - Kubernetes namespace for log monitoring (optional)
+- `RCON_POD` - Kubernetes pod name for log monitoring (optional)
+- `RCON_CONTAINER` - Kubernetes container name for log monitoring (optional)
+
+### Running Locally
+
+To build and run locally:
+```bash
+make build
+RCON_ADDRESS="localhost:25575" RCON_PASSWORD="your_rcon_password" ./mcgod
+```
+
+### Running with Docker
+
+To build and run with Docker:
+```bash
+make build-docker-local
+docker run --rm -it \
+  -e RCON_ADDRESS="localhost:25575" \
+  -e RCON_PASSWORD="your_rcon_password" \
+  docker.tipsy.codes/mcgod:latest
+```
+
+## Building
+
+### Local Build
+```bash
+make build
+```
+
+### Cross-platform Build
+```bash
+make build-amd64   # Build for AMD64
+make build-arm64  # Build for ARM64
+```
+
+### Docker Build
+```bash
+make build-docker   # Build multi-architecture Docker image
+make build-docker-local  # Build Docker image for current architecture
+```
+
 # Handling updates
 
 Use `go mod tidy` to update go.mod; do not directly modify it.