update readme

Author: lukepistrol

README.md

@@ -22,10 +22,14 @@ A collection of `tree-sitter` languages for syntax highlighting.
 
 ## Overview
 
-This package includes a binary framework `CodeLanguagesContainer.xcframework` which bundles all languages as a binary.
+This package includes a binary framework `CodeLanguagesContainer.xcframework` which bundles all `tree-sitter` languages in a single binary to greatly reduce SPM package resolution times.
 
 The languages are then served as a `CodeLanguage`.
 
+## SwiftTreeSitter
+
+This package heavily depends on [SwiftTreeSitter](https://github.com/ChimeHQ/SwiftTreeSitter) by [Matt Massicotte](https://twitter.com/mattie).
+
 ## Documentation
 
 The documentation including a guide on how to add support for new languages can be found **[here](https://codeeditapp.github.io/CodeEditLanguages/documentation/codeeditlanguages)**!