Temp 20109 from release branch

changes to export. Temporary branch created from 20.10.x needs to be merged in 20.10.x only, not in master.

docs/user-documentation/advance-features/command-line-tool.md

@@ -619,7 +619,7 @@ PAT generation is explained in depth in `token` command section.
 The Big Data Link Services can be used to download files which are contained in an obis repository.
 The services are included in the installation folder of openBIS,
 under `servers/big_data_link_services`. For how to configure and run them, consult
-the [README.md](https://sissource.ethz.ch/sispub/openbis/blob/master/big_data_link_server/README.md)
+the [README.md](https://sissource.ethz.ch/sispub/openbis/-/blob/master/server-external-data-store/README.md)
 file.
 
 ## 8. Rationale for obis