Add ngx-remark to the list of projects built on remark

[ericleib]

I suggest adding ngx-remark (a library I maintain) to this list.

[github-actions]

Hi! It seems you removed the template which we require. Here are our templates (pick the one you want to use and click *raw* to see its source):

• pull-request-template.md

I won’t send you any further notifications about this, but I’ll keep on updating this comment, and hide it when done!

Thanks,
— bb