First release candidate for BioSamples version 5.2.3 - update release docs
First release candidate for BioSamples version 5.2.3 - update release docs

EBIBioSamples/biosamples-v4,EBIBioSamples/biosamples-v4,EBIBioSamples/biosamples-v4,EBIBioSamples/biosamples-v4