1 files changed, 2 insertions, 0 deletions
diff --git a/readme.md b/readme.md
index 507ca34..03bdbc5 100644
--- a/readme.md
+++ b/readme.md
@@ -95,6 +95,8 @@ themselves; in that case the request is passed on.
 
 - **module `hosts`**
   - Hands over the requests to different modules depending on the `host` header.
+    Special keys are `:fallback` which handles hosts that are not found in the
+    map and `:none` to handle requests without a host header.
   - Takes a map from hostname (string) to handler (module)
 
 - **module `paths`**