220_Token_normalization/00_Intro.asciidoc 220_Token_normalization/10_Lowercasing.asciidoc 220_Token_normalization/20_Removing_diacritics.asciidoc 220_Token_normalization/30_Unicode_world.asciidoc 220_Token_normalization/40_Case_folding.asciidoc 220_Token_normalization/50_Character_folding.asciidoc 220_Token_normalization/60_Sorting_and_collations.asciidoc