Update README.md

Author: jmallm

README.md

@@ -21,7 +21,7 @@ We invite everybody to contribute to this challenge by providing data sets to be
 
 The aims of this challenge are: **(i)** to learn which issues you encounter when uploading data, **(ii)** how to prepare yourself / your data better for this process, e.g. which metadata / data formats are required, **(iii)** have examplary data sets for reuse / re-analysis e.g. via galaxy and for testing new tools and **(iv)** get ready for the "close to real life" repo-challenge 2.0. 
 
-We ask each participant to provide an overview in the table below which data sets and repos will be used. In addition a questionnaire will be provided (under construction, link will follow) to share the expierence. A short summary about this challenge is also available on zenodo:(link will follow). 
+We ask each participant to provide an overview in the table below which data sets and repos will be used. In case you need help from a data steward please write to the [helpdesk](https://nfdi4bioimage.de/help-desk/). In addition a questionnaire will be provided (under construction, link will follow) to share the expierence. A short summary about this challenge is also available on zenodo:(link will follow). 
 
 **Time line**
 
@@ -35,6 +35,15 @@ We ask each participant to provide an overview in the table below which data set
 
 + June 2025: wrap-up & open exchange meeting via zoom - planning of repo2.0
 
+| Submitter     | Repos planned |  Data type | Data steward | 
+| ------------- | ------------- | ------------- |------------- |
+|  Phlipp  | BIA, IDR, GEO, HubMAP   |multimodal spatial data||
+|    |    |    |
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 Eventually, the data uploaded for the challenge can be browsed and searched at
 [https://nfdi4bioimage.github.io/n4bi-repo-challenge-2025/](https://nfdi4bioimage.github.io/n4bi-repo-challenge-2025/).