I decided to split my wordpress site today. The main page is using the original install and only using pages. And I made a separate /blog/ with its own install for posts. I have migrated all of the posts over. Is there an easy way to 301 redirect all posts using this format, example.com/post-title/ to example.com/blog/post-title/? Once I do this, should I delete all of the posts in the original place or leave them?