Easier image insertion in posts

[fa-ribeiro]

Based on eduardo bouças blog post, I created an image tag to simplify image insertion on posts (with and without captions). It presumes all images are placed under asset/images and all I have to do is to specify image path from that point. The syntax is something like this:

{% include image name="2016/07/MyPostImage.png" caption="The optional image caption" %}

The include file image looks like this:

{% if include.caption %}
  <figure>
    <img src="{{ site.url }}{{ site.baseurl }}/assets/images/{{ include.name }}" {% if include.alt %} alt="{{ include.alt }}" {% endif %} {% if include.width %} width="{{ include.width }}" {% endif %}/>
    <figcaption>{{ include.caption }}</figcaption>
  </figure>
{% else %}
  <img src="{{ site.url }}{{ site.baseurl }}/assets/images/{{ include.name }}" {% if include.alt %} alt="{{ include.alt }}" {% endif %} {% if include.width %} width="{{ include.width }}" {% endif %}/>
{% endif %}

I'me wondering if it would be interesting to add this feature to the theme. if yes, I can submit a PR.

What do you think?

[mmistakes]

Could be a nice compliment to the gallery helper. If you want to work on a PR that would be cool. I'd suggest trying to use some of the same variable names to keep things consistent.