add How do I delete a Codebit?
Update how-do-i-delete-a-codebit.md

small wording tidy up
Update how-do-i-delete-a-codebit.md

simplified by removing "Profile" page
Merge pull request #153 from AlbionsRefuge/how-do-i-delete-a-codebit

add How do I delete a Codebit?
Close #153
Adding a topic_id
Adding an article_id