kc3-lang/kc3

diff --git a/doc/index.en.md b/doc/index.en.md
index 8535447..4ac6ade 100644
--- a/doc/index.en.md
+++ b/doc/index.en.md
@@ -4,5 +4,5 @@ The KC3 programming language documentation.
 
 
 ## Index
-- [KC3](KC3/) core language.
-- [HTTPd](HTTPd/) web server.
+- [1 KC3](KC3/) core language.
+- [2 HTTPd](HTTPd/) web server.