[ER Diagram] Use readable syntax instead of pictogram

[saddit]

Is your feature request related to a problem? Please describe.
I'm always frustrated when writing er diagram using '||--o{'

Describe the solution you'd like
Using 'one to one'/'one to many(1)'/'many(0) to many(0)' instead of '||--||'/'||-|{'/'}o--o{' or something better.

Describe alternatives you've considered
I just want a readable syntax

Additional context
I love all diagram except er. Thanks all contributors.

[knsv]

We cant change the existing syntax but it could be possible to add this as an alternate syntax.

[DKurilo]

I created PR and added aliases, so:

erDiagram
    CUSTOMER ||--o{ ORDER : places
    ORDER ||--|{ LINE-ITEM : contains
    CUSTOMER }|..|{ DELIVERY-ADDRESS : uses
    ADDRESS many to many CUSTOMER : have
    ZIP one or zero to many ADDRESS : have
    T1 one or zero to one or more T2 : test
    T2 one or many optionally to zero or one T3 : test
    T3 zero or more to zero or many T4 : test
    T4 many(0) to many(1) T5 : test
    T5 many optionally to one T6 : test
    T6 only one optionally to only one T1 : test
    T4 0+ to 1+ T6 : test
    T1 1 to 1 T3 : test

generates:

Is it okay or do you want me to change something?

Upd: updated diagram code and image after comment from @838239178

[saddit]

Using 0+ or 1+ instead of zero or more maybe more concise. Whatever, thank you for your contribution.

[DKurilo]

Using 0+ or 1+ instead of zero or more maybe more concise. Whatever, thank you for your contribution.

okay, I added these aliases too.

    T4 0+ to 1+ T6 : test
    T1 1 to 1 T3 : test

[saddit]

lgtm