fix readme and .gitignore

.gitignore

@@ -9,4 +9,21 @@ cmake-build-debug
 .vscode
 
 # Ignore XCode project local user data
-Test/**/xcuserdata
+### Xcode ###
+## User settings
+**/xcuserdata/
+
+## Xcode 8 and earlier
+*.xcscmblueprint
+*.xccheckout
+
+### Xcode Patch ###
+*.xcodeproj/*
+!*.xcodeproj/project.pbxproj
+!*.xcodeproj/xcshareddata/
+!*.xcodeproj/project.xcworkspace/
+!*.xcworkspace/contents.xcworkspacedata
+/*.gcno
+**/xcshareddata/WorkspaceSettings.xcsettings
+
+# End of https://www.toptal.com/developers/gitignore/api/xcode

Test/IntegrationTests/MqttClient/README.md

@@ -3,7 +3,7 @@
 This sample is an iOS application that launches the Mqtt Client and subscribes to the topic `test/topic`.
 
 ## How to run the application
-1. Open project `Samples/MqttClient/MqttClient.xcodeproj` with XCode
+1. Open project `Test/IntegrationTests/MqttClient/MqttClient.xcodeproj` with XCode
 2. Signing. Signing is required for iOS application. Setup `Project > Signing & Capabilities > Team` to automatically manage signing.
 3. Update Dependency. The project depends on aws-crt-swift. Go to `File > Add package dependency > Add Local ... ` and select your local aws-crt-swift. Alternatively, you can also enter Package URL `https://github.com/awslabs/aws-crt-swift` for released versions.
 4. Run the application.