Apply suggestions from code review

Co-authored-by: Scott Addie <[email protected]>

Author: alexwolfmsft

docs/azure/sdk/media/mermaidjs/authentication-environments.md

@@ -19,7 +19,7 @@ flowchart LR
     
     %% Local Development Machine Branch
     Q1 --> LocalDev[Development Machine]
-    LocalDev --> AppSP["**Application service principal**"]
+    LocalDev --> AppSP["**Service principal**"]
     LocalDev --> DevAccount["**Developer account**"]
     LocalDev --> Broker["**Broker**"]
     

docs/azure/sdk/media/mermaidjs/local-broker-authentication.md

@@ -12,7 +12,7 @@ ms.date: 08/07/2024
 
 flowchart LR
     APP["Local .NET app"]
-    BK["Developer account credentials supplied by broker"]
+    BK["User credentials supplied by broker"]
     AS["Azure services"]
     
     APP --> BK