fix: params explanation should say action (#9218)

Author: coryhouse

docs/route/action.md

@@ -42,7 +42,7 @@ fetcher.submit(data, {
 
 ## `params`
 
-Route params are parsed from [dynamic segments][dynamicsegments] and passed to your loader. This is useful for figuring out which resource to mutate:
+Route params are parsed from [dynamic segments][dynamicsegments] and passed to your action. This is useful for figuring out which resource to mutate:
 
 ```tsx
 <Route