Updated pkgs html2md (PR accepted), and slack (getPermalink support added).

vendor/github.com/patcon/html2md/README.md

@@ -0,0 +1,51 @@
+
+Html2md is a Go library for converting html to markdown.
+
+# Installation
+
+If you have [gopm](https://github.com/gpmgo/gopm) installed, 
+
+	gopm get github.com/lunny/html2md
+	
+Or
+
+	go get github.com/lunny/html2md
+
+# Usage
+
+* Html2md already has some built-in html tag rules. For basic use:
+
+```Go
+    md := html2md.Convert(html)
+```
+
+* If you want to add your own rules, you can
+
+```Go
+   html2md.AddRule(&html2md.Rule{
+       patterns: []string{"hr"},
+	   tp:       Void,
+	   replacement: func(innerHTML string, attrs []string) string {
+			return "\n\n* * *\n"
+		},
+   })
+```
+
+or
+
+```Go
+html2md.AddConvert(func(content string) string {
+    return strings.ToLower(content)
+})
+```
+
+# Docs
+
+* [GoDoc](http://godoc.org/github.com/lunny/html2md)
+
+* [GoWalker](http://gowalker.org/github.com/lunny/html2md)
+
+# LICENSE
+
+ BSD License
+ [http://creativecommons.org/licenses/BSD/](http://creativecommons.org/licenses/BSD/)