Tweak docs/README slightly

1 files changed, 8 insertions, 0 deletions

diff --git a/README.md b/README.md
index 5efb22b..6d91176 100644
--- a/README.md
+++ b/README.md
@@ -22,6 +22,14 @@ impl_trait! {
 }
 ```
 
+A few things to note:
+
+- You can have generics on the main `impl<T> Foo` block.
+- You can have generics on the trait impl with `impl trait<T> Bar`.
+- We unfortunately cannot make rustdoc output the trait impls as if they
+    were somehow "inherent" to the type. They'll still show up in a separate
+    "trait impls" section rather than as part of the appropriate impl block.
+
 A note on licensing
 -------------------