chore: update README file

README.md

@@ -19,6 +19,34 @@ To see all available commands after installation run
 gentroutils --help
 ```
 
+### Updating gwas catalog metadata
+
+To update gwas catalog metadata run folliwing command
+
+```bash
+gentroutils  -vvv -q gs://ot_orchestration/tests/gentroutils/log.txt  update-gwas-curation-metadata \
+-f ftp://ftp.ebi.ac.uk/pub/databases/gwas/releases/latest/gwas-catalog-associations_ontology-annotated.tsv gs://ot_orchestration/tests/gentroutils/gwas-catalog-associations_ontology-annotated.tsv \
+-f ftp://ftp.ebi.ac.uk/pub/databases/gwas/releases/latest/gwas-catalog-download-studies-v1.0.3.1.txt gs://ot_orchestration/tests/gentroutils/gwas-catalog-download-studies-v1.0.3.1.txt \
+-f ftp://ftp.ebi.ac.uk/pub/databases/gwas/releases/latest/gwas-catalog-download-ancestries-v1.0.3.1.txt gs://ot_orchestration/tests/gentroutils/gwas-catalog-download-ancestries-v1.0.3.1.txt \
+-g https://www.ebi.ac.uk/gwas/api/search/stats
+```
+
+The command `update-gwas-curation-metadata` fetches the data from the ftp server and transfers them to the gcp without intermediate temporary files. The download(s) and upload(s) are made asyncronously.
+
+The logs from the command are saved under the `-q` log file, if specified `gcp` log file, then the file will be uploaded after the command has run.
+
+To test the command run it with `-d` == `--dry-run`, this will just mark the input and output destinations.
+To allow for full logs to be transmitted to the log file, use `-vvv` to increase the verbosity of the logs
+
+> [!NOTE]
+> Change the path to the output `gcp` files to make sure they are saved under requested path
+
+> [!WARNING]
+> Please read before running the command!:
+>
+> * The above command has some default values set for the input and output files, make sure you test them in `--dry-run` so the existing files will not get overwritten!
+> * Make sure to run `gcloud auth application-default login` to allow to use Google Cloud Python SDK before running the command
+
 ## Contribute
 
 To be able to contribute to the project you need to set it up. This project