Add missing semicolons, add lint rule

[styfle]

Marked version:

0.5.0

Markdown flavor: All

Description

There were several places missing semicolons which get auto-inserted but typically its better to be explicit and match the existing js style.

Functionally, there is no change.

https://lgtm.com/projects/g/markedjs/marked/alerts/?mode=list

Contributor

• Test(s) exist to ensure functionality and minimize regression (lint rule)

Committer

In most cases, this should be a different person than the contributor.

• Draft GitHub release notes have been updated.
• CI is green (no forced merge required).
• Merge PR

[UziTech]

Perhaps we should add a rule to eslint to make sure we dont miss any in the future.

[styfle]

@UziTech Good point! I added a rule to .eslintrc.json 👍

[davisjam]

Thanks.