add contributing note to readme
@@ -6,6 +6,12 @@ The nCoV genomes were generously shared by scientists at the Shanghai Public Hea
nCoV genomes are not included as part of this repo as many of them are protected by the terms of GISAID sharing. These genomes will need to be supplemented by the user. Please add these as strains in `data/sequences.fasta`. Metadata for these viruses already exists in `data/metadata.tsv`.
+## Contributing
+We welcome contributions from the community to make this effort as useful as possible to as many people as possible.
+If you spot errors or inaccuracies, please file and issue or make a pull request.
+Translations of the [situation reports](https://nextstrain.org/narratives/ncov/sit-rep/2020-01-25) into languages other than English (in particular to countries affected by the outbreak) are very welcome.
+The situation reports are generated from [markdown files](https://github.com/nextstrain/ncov/blob/master/narratives/ncov_sit-rep_2020-01-25.md) -- please get in touch if you can help.
+
## Building
After provisioning the `data/sequences.fasta` file, the entire build can be regenerated by running
