Modified added and find functions

[DanielDSSim]

Modified add and find functions to normalise names of addressees with capitalised first letter for every word of name.

@Happytreat

[Happytreat]

Hi! Great job on making your first enhancement to AB! Just one small note:

• Try to use present tense/imperative verb when writing commit message. For instance: Instead of "Added ... function", use "Add ..." or "Modify ..."

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