Update 4 files

- /feed.json
- /_layouts/default.html
- /rss.xml
- /feed.xslt.xml

rss.xml

@@ -0,0 +1,29 @@
+---
+---
+<?xml version="1.0" encoding="UTF-8"?>
+<?xml-stylesheet type="text/xml" href="/feed.xslt.xml"?>
+<rss version="2.0">
+	<channel>
+		<title>{{ site.name | xml_escape }}</title>
+		<description>{% if site.description %}{{ site.description | xml_escape }}{% endif %}</description>		
+		<link>{{ site.url }}</link>
+		<lastBuildDate>{{ site.time | date_to_rfc822 }}</lastBuildDate>
+        <language>{{ site.lang | default: "zh-CN" }}</language>
+		{% for post in site.posts limit:10 %}
+			<item>
+				<title>{{ post.title | xml_escape }}</title>
+				{% if post.excerpt %}
+					<description>{{ post.excerpt | xml_escape }}</description>
+				{% else %}
+					<description>{{ post.content | xml_escape }}</description>
+				{% endif %}
+				<pubDate>{{ post.date | date_to_rfc822 }}</pubDate>
+				<link>{{ post.url | absolute_url }}</link>
+                {% for tag in post.tags %}
+                    <category>{{ tag | xml_escape }}</category>
+                {% endfor %}
+				<guid>{{ post.url | absolute_url }}</guid>
+			</item>
+		{% endfor %}
+	</channel>
+</rss>