Adds trailing slash to avoid 301 redirects

Author: javiercejudo

_config.yml

@@ -51,7 +51,7 @@ baseurl: ""
 
 markdown: kramdown
 highlighter: pygments
-permalink: /:title
+permalink: /:title/
 
 # The release of Jekyll Now that you're using
 version: v1.0.0
@@ -71,4 +71,4 @@ exclude:
     - Gemfile
     - Gemfile.lock
     - LICENSE
-    - README.md
+    - README.md