docs: apply suggestions from code review

Co-authored-by: Cristhian Garcia  <[email protected]>

docs/reference/real-life-use-cases.rst

@@ -15,7 +15,7 @@ Use Cases
 
 The following list of real-life use cases showcases the different ways Open edX Events can be used to facilitate communication between IDAs and application components, allowing them to interact, synchronize, and perform additional actions when specific triggers occur.
 
-Communication between IDAs
+Cross-services communication
 **************************
 
 The suggested strategy for communicating IDAs efficiently in the Open edX ecosystem is through an event-based architecture implemented via the Event Bus. This functionality used for asynchronous communication between services is built on top of sending Open edX Events (Open edX-specific Django signals) within a service. The Event Bus extends these signals, allowing them to be broadcast and handled across multiple services. For more details on the Event Bus,  please see `How to Start Using the Event Bus`_.