Fix example code in README

README.md

@@ -63,7 +63,9 @@ require "tartrazine"
 
 lexer = Tartrazine.lexer("crystal")
 theme = Tartrazine.theme("catppuccin-macchiato")
-puts Tartrazine::Html.new.format(File.read(ARGV[0]), lexer, theme)
+formatter = Tartrazine::Html.new
+formatter.theme = theme
+puts formatter.format(File.read(ARGV[0]), lexer)
 ```
 
 ## Contributing
@@ -76,4 +78,4 @@ puts Tartrazine::Html.new.format(File.read(ARGV[0]), lexer, theme)
 
 ## Contributors
 
-- [Roberto Alsina](https://github.com/ralsina) - creator and maintainer
+- [Roberto Alsina](https://github.com/ralsina) - creator and maintainer

shard.yml

@@ -1,5 +1,5 @@
 name: tartrazine
-version: 0.4.0
+version: 0.5.1
 
 authors:
   - Roberto Alsina <roberto.alsina@gmail.com>

src/formatters/ansi.cr

@@ -14,7 +14,7 @@ module Tartrazine
     def format(text : String, lexer : Lexer) : String
       outp = String::Builder.new("")
       format(text, lexer, outp)
-      return outp.to_s
+      outp.to_s
     end
 
     def format(text : String, lexer : Lexer, outp : IO) : Nil

src/formatters/html.cr

@@ -37,10 +37,9 @@ module Tartrazine
     def format(text : String, lexer : Lexer) : String
       outp = String::Builder.new("")
       format(text, lexer, outp)
-      return outp.to_s
+      outp.to_s
     end
 
-
     def format(text : String, lexer : Lexer, io : IO) : Nil
       pre, post = wrap_standalone
       io << pre if standalone?

src/formatters/json.cr

@@ -7,10 +7,9 @@ module Tartrazine
     def format(text : String, lexer : Lexer) : String
       outp = String::Builder.new("")
       format(text, lexer, outp)
-      return outp.to_s
+      outp.to_s
     end
 
-
     def format(text : String, lexer : Lexer, io : IO) : Nil
       tokenizer = Tokenizer.new(lexer, text)
       io << Tartrazine::Lexer.collapse_tokens(tokenizer.to_a).to_json