kc3-lang/libxkbcommon

diff --git a/README.md b/README.md
index 5e68e93..043b485 100644
--- a/README.md
+++ b/README.md
@@ -1,7 +1,9 @@
 # libxkbcommon
 
-libxkbcommon is a keymap compiler and support library which processes a
-reduced subset of keymaps as defined by the XKB specification.
+libxkbcommon is a keyboard keymap compiler and support library which
+processes a reduced subset of keymaps as defined by the XKB (X Keyboard
+Extension) specification.  It also contains a module for handling Compose
+and dead keys.
 
 ## Quick Guide
 
@@ -23,6 +25,9 @@ by all current distributions for their X11 XKB data.  More information on
 xkeyboard-config is available here:
     http://www.freedesktop.org/wiki/Software/XKeyboardConfig
 
+The dataset for Compose is distributed in libX11, as part of the X locale
+data.
+
 ## Relation to X11
 
 See [Compatibility](doc/compat.md) notes.