LRDOCS-1409 Added script to update Markdown files' sidebars to new syntax
Merge branch 'master' of https://github.com/liferay/liferay-docs into pr223-lrdocs-1409-b
Windows sidebar update script
Convert sidebars to new syntax
Merge pull request #1034 from jhinkey/pr223-lrdocs-1409-b

Sidebars - updated articles and scripts