complete openbis docker ingress container docs

See merge request !34

BIS-999: A fix for the case when an image reference is an absolute URL path. Treating "file:///" URL and others as absolute URLs.

BIS-999: Added extra check for the value "\uFFFD(undefined)". Now we ignore "<p>\uFFFD(undefined)</p>" as well.

BIS-999: Fixing IOException, when a property contains an image tag which does not point to anything.

BIS-999: Fixing IOException, when a property contains an image tag which does not point to anything.

BIS-999: Added a regexp with safe XML characters to prevent possible issues when converting HTML to PDF.

SSDM-14301: Changed how user roles are presented - project code changed to identifier and filled space information

Doc/sysadmin/rp 3829 sysadmin docs fixups

See merge request !33

BIS-800: Remove versioning, Remove  and add Template Properties on the internal namespace to the shipping properties

Fix URLs to docker-compose.ymls to point to the master branch

See merge request !32

Completed initial documentation for openBIS docker

See merge request !31