Update readme

The readme statement was incorrect. I noted staging location and that these are draft outputs.

README.md

@@ -1,11 +1,13 @@
 # nextstrain.org/lassa
 
+_Currently, this pathogen build is in draft state. Recent outputs are visible at [nextstrain.org/staging/lassa/l](https://nextstrain.org/staging/lassa/l) and [nextstrain.org/staging/lassa/s](https://nextstrain.org/staging/lassa/s), but it's not yet fully QCed or automated._
+
 This repository contains two workflows for the analysis of Lassa virus data:
 
 - [`ingest/`](./ingest) - Download data from GenBank, clean and curate it, separate into L and S segments, and upload it to S3
 - [`phylogenetic/`](./phylogenetic) - Filter sequences, align, construct phylogeny and export for visualization
 
-Each folder contains a README.md with more information. The results of running both workflows are publicly visible at [nextstrain.org/lassa](https://nextstrain.org/lassa).
+Each folder contains a README.md with more information.
 
 ## Installation