SECURITY-6719: update README to add RELEASE file link
SECURITY-6719: update README to add RELEASE file link

Co-authored-by: Laszlo Losonczy <d212db8ec32a50bbae28c4092b16c831fb3998d1@emarsys.com>
Co-authored-by: David Szigecsan <96879b0e6741d9427186fe05ded7dabad1041f35@emarsys.com>

emartech/escher-java,emartech/escher-java