Search within a tag and replace first string character lower case with upper case

Question

Forgive my noobiness. I am working with an XML file in Notepad++ and would like to find text within tags, and then replace only the first character of each word found with its upper case counterpart.

I found lots of very helpful stuff on the forum about finding text within tags, like...

(?<=<title>)([\w\s]+)(?=<\/title)  

Works like a charm, but I'm unsure how to move this along to the next step of the task, replacing the first character in each word with upper case.