document the change of PL license to BSD
document the change of PL license to BSD

languagetool-org/languagetool,lopescan/languagetool,jimregan/languagetool,jimregan/languagetool,janissl/languagetool,languagetool-org/languagetool,lopescan/languagetool,languagetool-org/languagetool,meg0man/languagetool,jimregan/languagetool,meg0man/languagetool,jimregan/languagetool,meg0man/languagetool,lopescan/languagetool,lopescan/languagetool,meg0man/languagetool,janissl/languagetool,lopescan/languagetool,janissl/languagetool,janissl/languagetool,jimregan/languagetool,janissl/languagetool,languagetool-org/languagetool,meg0man/languagetool,janissl/languagetool,languagetool-org/languagetool