Merge pull request #7 from mozilla/deprecate_repo

Update README with deprecation notice.

README.md

@@ -1,6 +1,10 @@
 Telemetry Tools
 ================
 
+**This repository is deprecated.** Details on the current server for Firefox Telemetry can be found [here](https://docs.telemetry.mozilla.org/concepts/pipeline/data_pipeline.html). The current tooling for working with data can be found in the [python_moztelemetry](https://github.com/mozilla/python_moztelemetry) repo.
+
+---
+
 Utility code to work with Mozilla Telemetry data.
 
 Talk to us on `irc.mozilla.org` in the `#telemetry` channel, or visit the