docs: Add documentation for set interation detail feauture

Signed-off-by: Talwinder Kaur <[email protected]>

cmd/wallet-sdk-gomobile/docs/usage.md

@@ -782,10 +782,20 @@ val ackTkn = interaction.acknowledgment().serialize()
 
 val ack = Acknowledgment(ackTkn)
 
+// The userID in the examples below are for demonstration purposes only.  
+
+test["userID"] = "123456"
+let data = try JSONEncoder().encode(test)
+let serializedInteractionDetails = String(data: data, encoding: .utf8)!
+
+// Additional Interactions are recorded as part of the wallet’s activity history which are OPTIONAL.
+// Upon the conclusion of issuance or presentation flows, the wallet will send a modified acknowledgment request to the downstream project. 
+
+ack.setInteractionDetails(serializedInteractionDetails) // SetInteractionDetails extends acknowledgment request with serializedInteractionDetails. 
+
 ack.success() // user accepts the credential
 ack.reject() // user rejects the credential
 
-// Consider checking the activity log at some point after the interaction
 ```
 
 #### Swift (iOS) - Issuer-Initiated - Pre-Authorized Code Flow
@@ -1608,6 +1618,14 @@ interaction.PresentCredentialOpts(PresentCredentialOpts().addScopeClaim(
 
 ```
 
+###### Set Interaction Details (OPTIONAL)
+
+```kotlin
+
+val interactionDetailsData = """{"user": "123456"}"""
+interaction.PresentCredentialOpts(PresentCredentialOpts().setInteractionDetails(interactionDetailsData))
+
+```
 
 #### Swift (iOS)
 
@@ -1863,7 +1881,22 @@ try interaction.presentCredentialOpts(
 )
 
 ```
+###### Set interaction details 
+
+```swift
+
+ var test = [String : String] ()
+ test["userId"] = "123456"
 
+ let data = try JSONEncoder().encode(test)
+ let serializedInteractionDetailsData = String(data: data, encoding: .utf8)!
+
+ try interaction.presentCredentialOpts(
+    selectedCreds,
+    opts: Openid4vpNewPresentCredentialOpts()?.setInteractionDetails(serializedInteractionDetails))     
+ )
+
+```
 
 ### Error Codes & Troubleshooting Tips