Update cmd/translatesfx/README.md

Co-authored-by: Ryan Fitzpatrick <10867373+rmfitzpatrick@users.noreply.github.com>

cmd/translatesfx/README.md

@@ -6,6 +6,7 @@
 > The [Splunk Distribution of OpenTelemetry Collector](https://docs.splunk.com/Observability/gdi/opentelemetry/opentelemetry.html) is the successor. Smart Agent monitors are available and supported through the [Smart Agent receiver](https://docs.splunk.com/Observability/gdi/opentelemetry/components/smartagent-receiver.html) in the Splunk Distribution of OpenTelemetry Collector.
 >
 
+## Notice: `translatesfx` is deprecated and will be removed from the distribution of the collector in an upcoming release.
 This package provides a command-line tool, `translatesfx`, that translates a 
 SignalFx Smart Agent configuration file into a configuration that can be
 used by a Splunk Distribution of OpenTelemetry Collector. The `translatesfx`