Improve relationships. Add references between specific fields.

Remove skinparam linetype ortho to make it work properly
Also add next use case: Teble 2 has two FKs to Table B

https://forum.plantuml.net/3636

Example

@startuml
hide circle

!include https://raw.githubusercontent.com/kurotych/sqlant/b2e5db9ed8659f281208a687a344b34ff38129cd/puml-lib/db_ent.puml

table(tableA) {
  column(id, "bigint", $pk=true, $nn=true)
  column(tableb_id1, "bigint", $nn=true)
  column(tableb_id2, "bigint", $nn=true)
}

table(tebleB) {
  column(id, "bigint", $pk=true, $nn=true)
}

tableA::tableb_id1 }o--|| tebleB::id
tableA::tableb_id2 }o--|| tebleB::id

@enduml

Start by reproducing the supplied SQL-to-PlantUML example, including two foreign keys from one table to the same target, and review the linked forum discussion for the expected relationship rendering. Done means the orthogonal line setting no longer interferes and both field-specific relationships are represented correctly.