Revert "Add github.io url to config"

This reverts commit 541e7db386d34ef41cf5c727e2f2f52070463f77.
Revert "Remove all posts"

This reverts commit 607f220e846393d412229fb0ae5939b077295feb.
Revert "Revert "Add github.io url to config""

It's late... not thinking straight.
This reverts commit a54b73df4abc883ee5a80b0c070d8ff64da02ebf.