Added roman and alphanumeric list feature

[subhajit20]

Closes accordproject/template-playground#10

Added roman and alphanumeric list feature

Author Checklist

• Ensure you provide a DCO sign-off for your commits using the --signoff option of git commit.
• Vital features and changes captured in unit and/or integration tests
• Commits messages follow AP format
• Extend the documentation, if necessary
• Merging to main from fork:branchname

[subhajit20]

I have only added the Roman list feature as of now. Any suggestion for an alphanumeric list @dselman

[subhajit20]

hey @sanketshevkar @DianaLease can you guys review this pr and give me a feedback ?

[sanketshevkar]

Can you please add a unit test / screenshot / screen-recording whichever you feel that can help us verify the changes you've made? Thanks.

[subhajit20]

Can you please add a unit test / screenshot / screen-recording whichever you feel that can help us verify the changes you've made? Thanks.

Have one confusion that in the issue @dselman mentioned the markdown should have roman and alphanumeric
list ... here what does markdown mean like there are multiple markdown packages I can see in the repo ... so which one should have that feature ?