chore: update READMEs for 0.2.0

- Update version in main README to 0.2.0
- Update health monitoring description to activity-based
- Format ConnectionLost pattern match in example

Author: pbeets

README.md

@@ -20,7 +20,7 @@ Add to your `Cargo.toml`:
 
 ```toml
 [dependencies]
-kalshi-trade-rs = "0.1.0"
+kalshi-trade-rs = "0.2.0"
 ```
 
 Configure environment variables:

examples/stream_reconnect.rs

@@ -59,7 +59,10 @@ async fn run_stream(config: &KalshiConfig) -> Result<String, Box<dyn std::error:
         match handle.update_receiver.recv().await {
             Ok(update) => match &update.msg {
                 StreamMessage::Closed { reason } => return Ok(reason.to_string()),
-                StreamMessage::ConnectionLost { reason, subscriptions } => {
+                StreamMessage::ConnectionLost {
+                    reason,
+                    subscriptions,
+                } => {
                     eprintln!("Connection lost: {reason}");
                     if !subscriptions.is_empty() {
                         eprintln!("Lost subscriptions: {subscriptions:?}");

src/ws/README.md

@@ -31,7 +31,7 @@ Complete reference for WebSocket streaming supported by this library.
 |---------|--------|-------|
 | RSA-PSS Authentication | ✅ | Headers: KALSHI-ACCESS-KEY, KALSHI-ACCESS-SIGNATURE, KALSHI-ACCESS-TIMESTAMP |
 | Connection Strategies | ✅ | `Simple` (fast-fail) and `Retry` (exponential backoff) |
-| Health Monitoring | ✅ | Bidirectional ping/pong with configurable timeouts |
+| Health Monitoring | ✅ | Activity-based monitoring with configurable timeouts |
 | Heartbeat Response | ✅ | Auto-responds to Kalshi's 10-second ping frames |
 | Graceful Shutdown | ✅ | Clean close with subscriber notification |
 | Reconnection Support | ✅ | Via application-level pattern (see examples) |