ISIS-1899: updates docs - remove ref to addmissinglicenses.groovy
ISIS-1899: updates docs - remove ref to addmissinglicenses.groovy

since haven't used this script in ages

incodehq/isis,estatio/isis,apache/isis,incodehq/isis,apache/isis,incodehq/isis,estatio/isis,estatio/isis,estatio/isis,incodehq/isis,apache/isis,apache/isis,apache/isis,apache/isis