kc3-lang/kc3

diff --git a/README.md b/README.md
index 0ab5506..43020d9 100644
--- a/README.md
+++ b/README.md
@@ -4,6 +4,9 @@ KC3 is a programming language with meta-programmation and a graph
 database embedded into the language. It aims to be the language
 for semantic programming, and programming the semantic web.
 
+You can easily convert each KC3 function to a C function. KC3 is both
+a language and a runtime.
+
 This is a development branch see
 [KC3 v0.1.14](https://git.kmx.io/kc3-lang/kc3/_tree/v0.1.14)
 for a stable release.