You try this.
I have already tried it in my django template.
It will work fine. Just remove the curly braces pair {{ and }} from {{source}}.
I have also added <table> tag and that's it.
After modification your code will look something like below.
{% for source in sources %}
<table>
<tr>
<td>{{ source }}</td>
<td>
{% if title == source %}
Just now!
{% endif %}
</td>
</tr>
</table>
{% endfor %}
My dictionary looks like below,
{'title':"Rishikesh", 'sources':["Hemkesh", "Malinikesh", "Rishikesh", "Sandeep", "Darshan", "Veeru", "Shwetabh"]}
and OUTPUT looked like below once my template got rendered.
Hemkesh
Malinikesh
Rishikesh Just now!
Sandeep
Darshan
Veeru
Shwetabh