diff --git a/README.md b/README.md
index 598b442..42a5086 100644
--- a/README.md
+++ b/README.md
@@ -10,9 +10,9 @@ get :: entity, fragment...  -> component...
 has :: entity, fragment -> boolean
 has_all :: entity, fragment... -> boolean
 has_any :: entity, fragment... -> boolean
-set :: entity, fragment, component -> ()
-assign :: entity, fragment, component -> boolean
-insert :: entity, fragment, component -> boolean
+set :: entity, fragment, component, any... -> ()
+assign :: entity, fragment, component, any... -> boolean
+insert :: entity, fragment, component, any... -> boolean
 remove :: entity, fragment... -> ()
 clear :: entity -> ()
 ```
diff --git a/ROADMAP.md b/ROADMAP.md
index b3be607..5e4f2e3 100644
--- a/ROADMAP.md
+++ b/ROADMAP.md
@@ -1,3 +1,6 @@
 # Roadmap
 
 ## Backlog
+
+- add on_remove hook
+ 
\ No newline at end of file