HTML表单中的URL输入字段

I am creating a form to allow admin users to create new 'News' Items. I am using PHP Codeigniter. All works perfect at the moment storing and retrieving data from MYSQL database.

I have now realised I would like the option to add external URL links that relate to each news item. Possibility to add multiple links for each. I was thinking of adding a ´links´table to the database, foreign key relation with News table. Something like below:

tbl_news:

news_id,
title,
descrip,
...etc

tbl_link:

link_id,
title,
URL,
news_id

This will take a bit of processing as it is 2 input fields per link on the form and could become messy if the user adds multiple links per news item. Just wondering is there a better way to allow for URL input in a HTML form?