Added "how to contribute" section to metadata

README.md

@@ -1,4 +1,4 @@
-# CLDF dataset derived from Barlow's "Numerals of the Pacific" from 2024
+![image](https://github.com/user-attachments/assets/565bd7c5-1db3-421f-961c-5d66a0f799fe)# CLDF dataset derived from Barlow's "Numerals of the Pacific" from 2024
 
 [![CLDF validation](https://github.com/numeralbank/barlowpacific/workflows/CLDF-validation/badge.svg)](https://github.com/numeralbank/barlowpacific/actions?query=workflow%3ACLDF-validation)
 
@@ -9,6 +9,11 @@ If you use these data please cite
   > Barlow, Russell (ed.). 2024. Numerals of the Pacific: A collection of numeral terms in Austronesian and Papuan languages.
 - the derived dataset using the DOI of the [particular released version](../../releases/) you were using
 
+## How to contribute
+
+If you have data on numerals of the Pacific that you would like to contribute to this dataset, you can! Please notify us of the data by opening an [issue](../../issues/). If the numeral information is aleady published somewhere, you can simply provide the bibliographic information for the publication. If you have a digital copy of the publication (or of the relevant pages), you can also attach that in the issue. If, however, the data are not published anywhere (e.g., they are from your personal fieldnotes), then you can make a pdf including the data and as much metadata as possible: the name of the language, the date and location of where the data were collected, an "author" for the document (e.g., the name of the linguist who collected and compiled the data), and a title for the document (e.g., "Cardinal numerals in Language X" or "Excerpt from Dr. Linguist's fieldnotes on Language X"). The goal is to have an "unpublished manuscript" that is nevertheless nicely citable.
+
+
 ## Description
 
 
@@ -49,4 +54,4 @@ Christoph Rzymski | @chrzyki | patron, maintainer | Other
 
 The following CLDF datasets are available in [cldf](cldf):
 
-- CLDF [Wordlist](https://github.com/cldf/cldf/tree/master/modules/Wordlist) at [cldf/cldf-metadata.json](cldf/cldf-metadata.json)
+- CLDF [Wordlist](https://github.com/cldf/cldf/tree/master/modules/Wordlist) at [cldf/cldf-metadata.json](cldf/cldf-metadata.json)