docs: Document IsValid parent namespace behavior

Add documentation explaining how IsValid works with nested namespaces,
including example showing parent namespace invalidation.

Merge pull request #39 from cohesivestack/feature/fix-minor-typo-in-r…

…eadme

Fix minor typo in README

Release v0.4.2

Merge pull request #26 from cohesivestack/feature/upgrade-packages

Feature/upgrade packages

Merge pull request #19 from cohesivestack/feature/is-allows-multiple-…

…validators

Introducing Variadic Parameters to `Is` and `Check` functions

Maintain the optional valueError.title as nil, and set its default va…

…lue lazily

Add golang documentation to `ValidationFactory`

Merge pull request #10 from cohesivestack/feature/use-filepath-in-gen…

…erator

Fix generator to use filepath instead of path