Prepares X-Ray UDP Exporter v1.0.0 release (#278)

Author: jj22ee

exporters/xrayudp/CHANGELOG.md

@@ -1,5 +1,9 @@
 # Release History: exporters/xrayudp
 
+### v1.0.0 / 2025-05-15
+
+* No changes
+
 ### v0.1.0 / 2025-04-15
 
-* Initial release
+* Initial release

exporters/xrayudp/README.md

@@ -0,0 +1,21 @@
+# AWS X-Ray UDP Exporter for Usage with OpenTelemetry on Lambda
+
+## Installation
+
+Install with the following command:
+
+```
+go get github.com/aws-observability/aws-otel-go/exporters/xrayudp
+```
+
+## Usage
+
+```go
+	// ...
+
+	udpExporter, _ := xrayudp.NewSpanExporter(ctx)
+
+	tp := trace.NewTracerProvider(trace.WithSpanProcessor(trace.NewSimpleSpanProcessor(udpExporter)))
+
+	// ...
+```