Here is tips to list up your Blog Posts using Jekyll.

Code which did not work

The liquid code which did not work for Project page.

<ul>
  {% for post in site.posts %}
    <li><a href="{{ post.url }}">{{ post.title | escape }}</a></li>
  {% endfor %}
</ul>

Output:

The URL seems to point /YYYY/MM/DD/title.html.

Code which worked

Following code worked.

The relative_url filter shall be used, when yor blog is located on sub-directory of the site.

<ul>
  {% for post in site.posts %}
    <li><a href="{{ post.url | relative_url }}">{{ post.title | escape }}</a></li>
  {% endfor %}
</ul>

Output:

Better code - pagination

It is better to consider pagination.

<!-- to retrieve URL for blog posts, need to consider paginate -->
{% if site.paginate %}
  {% assign posts = paginator.posts %}
{% else %}
  {% assign posts = site.posts %}
{% endif %}

<!-- list blogs -->
<ul>
  {% for post in posts %}
    <li><a href="{{ post.url | relative_url }}">{{ post.title | escape }}</a></li>
  {% endfor %}
</ul>

Output:

Reference