add Dockerfile, update README (license, temp config, docker instructions)

README.md

@@ -25,6 +25,9 @@ Create a `config.yaml` file in the working directory:
 port: 8080
 upstream_url: "https://api.z.ai/api/anthropic"
 
+# Optional: override temperature for all requests
+# temperature: 0.7
+
 # Retry configuration
 max_retries: 3
 retry_base_delay_ms: 1000
@@ -70,6 +73,8 @@ Provides Go toolchain with gopls and other development tools.
 
 ## Running
 
+### Binary
+
 ```bash
 ./proxx
 ```
@@ -79,6 +84,18 @@ The server will start and log:
 Starting proxx on :8080, upstream: https://api.z.ai/api/anthropic
 ```
 
+### Docker
+
+```bash
+docker build -t proxx .
+docker run -p 8080:8080 -v ./config.yaml:/etc/proxx/config.yaml proxx
+```
+
+The server will start and log:
+```
+Starting proxx on :8080, upstream: https://api.z.ai/api/anthropic
+```
+
 ## API Endpoints
 
 ### GET /v1/models
@@ -230,4 +247,4 @@ proxx/
 
 ## License
 
-See LICENSE file for details.
+MIT