I don't think this is a particularly useful addition to the repository.

And I don't think this is even considered an "algorithm" really, it's just two standard Java methods, toLowerCase and contains.

The method names are misleading, a better name would be containsIgnoreCase. (Like what equalsIgnoreCase is to equals.)
There is also no need to initialize the boolean if you'll assign it a new value right after.

The entire method could've been written as:

return a.toLowerCase().contains(b.toLowerCase());

Also it doesn't include a link to an algorithm or anything either. Ie a Wikipedia Article