If you want to display a comment counter for a given thread, simply
put a link to that comments thread anchor:
The isso js client willl replace the content of this tag with a human readable
counter like “5 comments”.
Alternatively, if guessing from href is not relevant, you could use a
data-isso-id attribute on the <a> to indicate which thread to count for.
Now, either include count.min.js if you want to show only the comment count
(e.g. on an index page) or embed.min.js for the full comment client (see
Quickstart); do not mix both.
You can have as many comments counters as you want in a page, and they will be
merged into a single GET request.