Document clearness: Handlebarsjs #each not working inside table due to Html parser problem and users should be aware of this problem.

[christianxiao]

When we try to loop inside a table like this:

                        {{#each myListData}}
                        <tr>

And if we put the above code inside of script, then it works.
This is the Html parser problem, but users still need to be told somewhere in the documentation to be aware of this problem.
Please check the issue here: handlebars-lang/handlebars.js#604 (comment)

[christianxiao]

Thank @stevenvachon for explanation and @nknapp for making the final changes on the site. This change will definitely help a lot of people.