docs(zxcvbn): Clarify the source of polish first and last name data

Closes #273

packages/languages/pl/README.md

@@ -35,10 +35,10 @@ zxcvbn.check(password)
 
 ## Sources
 
-1. First and last names data use to be a dictionary for zxcvbn-ts are extracted from files based on Polish Government Public Datasets (Public Domain) and available publicly on <https://github.com/oskar-gmerek/polish_database> (MIT licensed)
-   [*] Data is based on Last and First names registered under Polish Universal Electronic System for Population Register and may contains also names of foreigners registered under this Register, (ex. refugees from Ukraine who were given a PESEL number after the Russian Invasion of Ukraine)
-   [*] Lastnames https://dane.gov.pl/pl/dataset/1681,nazwiska-osob-zyjacych-wystepujace-w-rejestrze-pesel
-   [*] Firstnames https://dane.gov.pl/pl/dataset/1667,lista-imion-wystepujacych-w-rejestrze-pesel-osoby-zyjace
+1. The first and last name data used as a dictionary for zxcvbn-ts are extracted from files available on the [Polish Government Data Portal](https://dane.gov.pl/).
+   * These lists are ranked by popularity and consist of the names of individuals registered in the Polish Universal Electronic System for Population Register (PESEL). They may also include the names of foreigners, such as refugees from Ukraine, who were assigned a PESEL number following the Russian invasion of Ukraine.
+   * [Last Names Dataset](https://dane.gov.pl/pl/dataset/1681,nazwiska-osob-zyjacych-wystepujace-w-rejestrze-pesel) (CC0 1.0 licensed)
+   * [First Names Dataset](https://dane.gov.pl/pl/dataset/1667,lista-imion-wystepujacych-w-rejestrze-pesel-osoby-zyjace) (CC0 1.0 licensed)
 2. Common Words data use to be a dictionary for zxcvbn-ts are extracted from files available on https://opus.nlpl.eu/OpenSubtitles2018.php .Files based on that data and used to generate zxcvbn-ts dictionary are available publicly on <https://github.com/hermitdave/FrequencyWords> (MIT licensed)
 
 ## Author