diff --git a/readme.md b/readme.md
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--- a/readme.md
+++ b/readme.md
@@ -7,10 +7,10 @@
 
 ## WARNING: UNSTABLE
 
-The code is in a very early and experimental stage of development. Many
+**The code is in a very early and experimental stage of development. Many
 features are not yet implemented and tested. There may still be significant
 changes. Therefore, it is not recommended to use the driver in production
-environments.
+environments.**
 
 Driver to use [libvips](https://github.com/libvips/libvips) with [Intervention
 Image](https://github.com/Intervention/image). Combines the easy-to-use API of