diff --git a/README.md b/README.md
index 6bc91e6..6d7c08a 100644
--- a/README.md
+++ b/README.md
@@ -63,6 +63,12 @@ result = md.convert("example.jpg")
 print(result.text_content)
 ```
 
+### Extensions
+
+#### Automatic Code Language Detection
+
+Install `guesslang` with the command `pip install guesslang` to enable automatic code language recognition, especially useful for converting documents from web pages.
+
 ### Docker
 
 ```sh