Update diagrams and Managed Subscribe Readme (#51)

* Update diagrams and Managed Subscribe Readme

* fix spelling mistake and add accepted words

* Update diagrams

docs/design/diagrams/managed_subscribe_consumer_sequence.puml

@@ -0,0 +1,18 @@
+@startuml Managed Subscribe Consumer
+title Managed Subscribe Sequence from Consumer's Perspective
+participant "Digital Twin Consumer" as DTConsumer
+participant Ibeji
+participant Broker
+
+autonumber
+
+DTConsumer -> Ibeji: FindById - request
+DTConsumer <- Ibeji: FindById - response
+DTConsumer -> Ibeji: GetSubscriptionInfo (entity_id, constraints)
+Ibeji -> DTConsumer: GetSubscriptionInfo - response
+note right of DTConsumer: SubInfo {topic, broker endpoint info}
+DTConsumer -> Broker: Subscribe (SubInfo.topic)
+DTConsumer <- Broker : data
+DTConsumer -> Broker: Unsubscribe (SubInfo.topic)
+DTConsumer x<- Broker: data
+@enduml

docs/design/diagrams/managed_subscribe_interceptor_sequence.puml

@@ -1,8 +1,10 @@
 @startuml Managed Subscribe Interceptor
 title Managed Subscribe Interceptor Sequence
 participant "Digital Twin Provider" as DTProvider
+box "Ibeji"
 participant "Managed Subscribe Module" as ManagedSubscribeModule
-participant Ibeji
+participant "InVehicle Digital Twin" as Ibeji
+end box
 
 autonumber
 
@@ -11,8 +13,10 @@ ManagedSubscribeModule -> ManagedSubscribeModule: Intercepts Register request
 
 alt contains `ManagedSubscribe` Entry
 note right of DTProvider
-// Entry that indicates to Ibeji that the Provider
-// wants to utilize the Managed Subscribe Module.
+Entry that indicates to Ibeji that
+the Provider wants to utilize the
+Managed Subscribe Module.
+
 {
     protocol: "grpc"
     operations: ["ManagedSubscribe"]
@@ -23,7 +27,8 @@ end note
 ManagedSubscribeModule -> ManagedSubscribeModule: Store provider callback.
 ManagedSubscribeModule -> ManagedSubscribeModule: Modify the request's `ManagedSubscribe` endpointInfo.
 note right of ManagedSubscribeModule
-// Points to the Managed Subscribe gRPC endpoint
+Points to the Managed Subscribe gRPC endpoint
+
 {
     protocol: "grpc"
     operations: ["ManagedSubscribe"]