Add branching link to Entity Relationship Diagrams or add blank element

[TeUm3048]

Proposal

Mermaid.js should add a branching link, because in some cases, creating ER diagrams for entities (not tables) needs to draw the relationships between 3 or more entities.

PlantUML allows you to do it in two ways:
1. Connect to existing link (only 1 link can be associated by this way) — Example 1
2. Add diamond pseudo-element add connect to it — Example 2

Example

I propose a new syntax to add a pseudo-element

erDiagram

(pseudo01) --|{ entity01
(pseudo01) --|{ entity02
(pseudo01) --|{ entity02


%% And also this syntax is possible to create a pseudo-element alone
%% BUT it's useless, because pseudo-element doesn't have any attributes 
(pseudo) {}

Screenshots

I see pseudo-element like a little dot, that appears across the links, similar to the first PlantUML example.

IMHO, diamonds look too heavy and unimpressive.