open-source-java-design-patterns-2nd-edition
translation: translation of abstract document pattern to Italian (#2646)
translation: translation of abstract factory pattern to Italian (#2662)
translation: translation of active object pattern to Italian (#2663)
translation: translation of acyclic visitor pattern to Italian (#2699)
translation: translation of adapter pattern to Italian (#2732)
translation: translation of iterator pattern to Italian (#2796)
translation: translation of observer pattern to Italian (#2767)
translation: Update README.md (#2515)