Fix link to contribute page
Merge pull request #12 from po1/patch-1

Fix link to contribute page
Fix table display of whitespace
Update discovery and negotiation abstract
add some new articles which need to be fleshed out
use kramdown
actually add new articles
fixup toc from conversion to kramdown
update title to be more awesome
rename some articles to allow for better ordering
Make "please login.." link to login
fix kramdown rendering of tables
First text in why ros
Merge branch 'gh-pages' of https://github.com/ros2/design into gh-pages
more text
touchup toc css
initial commit of ros with dds, not done yet
attempt to get ordered posts in github pages
set permalink for articles which use numbers
update permalinks to be absolute