Post-process markdown to handle child pages.
Post-process markdown to handle child pages.

When procesing a child page, e.g. /wiki/foo/bar.md all the
MediaWiki links will be relative to /wiki/ but for the Jekyll
rendering should be relative to current page - or absolute.
This commit converts the relative links into absolute links.

See GitHub issue #18.

peterjc/mediawiki_to_git_md