{% for content in contents %}
<a href="{{ content.widgets.custom_blog_link.body.value }}">
Click here to see this press feature!
</a>
{% endfor %}
Bonus tip: For each field that you add, it depends how to display the custom module. To see the dict of your custom fields you can do something like this:
{{ content.widgets|tojson }}
This will display all custom fields you have added.