chore: added todo comment

Makefile

@@ -37,6 +37,7 @@ docker-push:
 	docker push twilio/twilio-csharp:${CURRENT_TAG}
 
 cover:
+	# TODO: /d:sonar.coverage.exclusions is a temporary fix for new code files to be ignored from coverage report
 	dotnet sonarscanner begin /k:"$(PROJECT_NAME)" /o:"twilio" /d:sonar.host.url=https://sonarcloud.io /d:sonar.token="${SONAR_TOKEN}"  /d:sonar.language="cs" $(SONAR_SOURCES) /d:sonar.coverage.exclusions=src/Twilio/JWT/AccessToken/TaskRouterGrant.cs /d:sonar.cs.opencover.reportsPaths="test/lcov.opencover.xml"
 	# Write to a log file since the logs for build with sonar analyzer are pretty beefy and travis has a limit on the number of log lines
 	dotnet build Twilio.sln > buildsonar.log