Prepare monitor query for release (#22166)

sdk/monitor/azure-monitor-query/CHANGELOG.md

@@ -1,5 +1,10 @@
 # Release History
 
-## 1.0.0-beta.1 (Unreleased)
+## 1.0.0-beta.1 (2021-06-09)
+Version 1.0.0-beta.1 is a preview of our efforts in creating a client library for querying Azure Monitor logs and 
+metrics that is developer-friendly, idiomatic to the Java ecosystem, and as consistent across different languages 
+and platforms as possible. The principles that guide our efforts can be found in the
+[Azure SDK Design Guidelines for Java](https://azure.github.io/azure-sdk/java_introduction.html).
 
-- Initial release. Please see the README and wiki for information on the new design.
+## New features
+- Initial release. Please see the README and wiki for information on using the new library.

sdk/monitor/azure-monitor-query/README.md

@@ -415,6 +415,10 @@ comments.
 
 <!-- LINKS -->
 
+[source_code]: https://github.com/Azure/azure-sdk-for-java/tree/master/sdk/monitor/azure-monitor-query/src
+
+[samples_readme]: https://github.com/Azure/azure-sdk-for-java/blob/master/sdk/monitor/azure-monitor-query/src/samples/java/README.md
+
 [azure_subscription]: https://azure.microsoft.com/free
 
 [jdk_link]: https://docs.microsoft.com/java/azure/jdk/?view=azure-java-stable