Today we import the upper/lowercase based slug from the old blog.
The more natural (and preferred way by Emmanuel) is tu use lowercase and slugs.

FirstPreviewOfHibernateSearchForHibernateORM5 -> first-preview-of-hibernate-search-for-hibernate-orm-5
HibernateORMIsAwesome -> hibernate-orm-is-awesome
HibernateORM5IsAwesome -> hibernate-orm-5-is-awesome

The old blog capitalizes all first letters.
We would need to consider acronyms in the algorithm as one word.
We would need to consider sequences of numbers in the algorithm as one word.

This is something we should do before the migration but that's not really mandatory. More URL cosmetics. It could be slipped if we lack time.