Update README.md

studies/Ribes_nigrum_drought_exp1/README.md

@@ -5,6 +5,8 @@ A greenhouse experiment was performed to investigate the influence of drought st
 
 ## Study metadata
 
+This is an overview about the metadata for the first *R. nigrum* drought stress experiment. The metadata can also be found in the [isa.study file](https://git.nfdi4plants.org/usadellab/ribes_nigrum_genome/-/blob/main/studies/Ribes_nigrum_drought_exp1/isa.study.xlsx?ref_type=heads).
+
 | Input [Source Name] | Characteristic [organism] | Characteristic [plant structure development stage] | Characteristic [geographic area] | Parameter [isolation and growth condition] | Parameter [Container volume] | Parameter [plant growth medium exposure] | Factor [watering exposure] | Factor [Experiment End Date] | Characteristic [plant structure] | Output [Sample Name]
 | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ | ------ |
 | R. nigrum cv Rosenthals Langtraubige_R1 | Ribes nigrum | adult | Germany | drought stress | 3 liter | soil water content exposure | 0 Milliliter | 4 Day | root | R. nigrum cv Rosenthals Langtraubige_roots_R1