Add RSS feed

[greensteph]

create feed.xml file, populate with:

---

layout:

<title>{{ site.title | xml_escape }}</title> {{ site.description | xml_escape }} {{ site.url }}{{ site.baseurl }}/ {{ site.time | date_to_rfc822 }} {{ site.time | date_to_rfc822 }} Jekyll v{{ jekyll.version }} {% for post in site.posts limit:10 %} <title>{{ post.title | xml_escape }}</title> {{ post.content | xml_escape }} {{ post.date | date_to_rfc822 }} {{ post.url | prepend: site.baseurl | prepend: site.url }} {{ post.url | prepend: site.baseurl | prepend: site.url }} {% for tag in post.tags %} {{ tag | xml_escape }} {% endfor %} {% for cat in post.categories %} {{ cat | xml_escape }} {% endfor %} {% endfor %}