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README.md

 # mdbook-emojis
 
+[![Crates.io](https://img.shields.io/crates/d/mdbook-emojis)](https://crates.io/crates/mdbook-emojis)
+
 This crate reads a text from <stdin> and replaces occurrencies of emoji shortcodes (description codes) with the appropriate code point.
 
 ## Usage