Merge branch 'master' into bael-16656

rxjava/README.md

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+## RxJava
+
+This module contains articles about RxJava.
+
+### Relevant articles:
+
+- [Dealing with Backpressure with RxJava](https://www.baeldung.com/rxjava-backpressure)
+- [How to Test RxJava?](https://www.baeldung.com/rxjava-testing)
+- [Implementing Custom Operators in RxJava](https://www.baeldung.com/rxjava-custom-operators)
+- [Introduction to RxJava](https://www.baeldung.com/rx-java)
+- [Observable Utility Operators in RxJava](https://www.baeldung.com/rxjava-observable-operators)
+- [Introduction to rxjava-jdbc](https://www.baeldung.com/rxjava-jdbc)
+- [Schedulers in RxJava](https://www.baeldung.com/rxjava-schedulers)
+- [Mathematical and Aggregate Operators in RxJava](https://www.baeldung.com/rxjava-math)
+- [Combining Observables in RxJava](https://www.baeldung.com/rxjava-combine-observables)
+- [RxJava StringObservable](https://www.baeldung.com/rxjava-string)
+- [Filtering Observables in RxJava](https://www.baeldung.com/rxjava-filtering)
+- [RxJava One Observable, Multiple Subscribers](https://www.baeldung.com/rxjava-multiple-subscribers-observable)
+- [Difference Between Flatmap and Switchmap in RxJava](https://www.baeldung.com/rxjava-flatmap-switchmap)
+- More articles: [[next -->]](/rxjava-2)