Merge pull request #32 from allo-media/master

At most 5 keywords for crates.io.

Cargo.toml

@@ -5,7 +5,7 @@ authors = ["Allo-Media <contact@allo-media.fr>"]
 edition = "2021"
 license = "MIT"
 description = "Parse and convert numbers written in English, Spanish, German or French into their digit representation."
-keywords = ["French", "Spanish", "English", "German", "NLP", "words-to-numbers"]
+keywords = ["NLP", "words-to-numbers"]
 categories = ["text-processing"]
 repository = "https://github.com/allo-media/text2num-rs"
 readme = "README.md"