diff --git a/README.md b/README.md
index 0b0a84a..e5af0dc 100644
--- a/README.md
+++ b/README.md
@@ -3,6 +3,10 @@
 An alternative TUI-based frontend for the Canvas LMS. Also implements
 `libcanvas`, a Rust library that wraps common Canvas API actions.
 
+It is built for use by students/enrollees in courses, not instructors. There
+are no plans to support features specifically for instructors, but feel free to
+open a pull request to add them.
+
 ## Building
 
 Install Nix with flakes.
@@ -26,7 +30,7 @@ officially supported. Use the latest stable Rust toolchain. You must have
 You can enter a development shell with all of the required dependencies
 (including `openssl`) with
 
-```bash
+```sh
 nix develop
 ```