typo fix (#1264)
diff --git a/src/rp2_common/pico_btstack/include/pico/btstack_run_loop_async_context.h b/src/rp2_common/pico_btstack/include/pico/btstack_run_loop_async_context.h
index 10875de..d1b09b7 100644
--- a/src/rp2_common/pico_btstack/include/pico/btstack_run_loop_async_context.h
+++ b/src/rp2_common/pico_btstack/include/pico/btstack_run_loop_async_context.h
@@ -15,7 +15,7 @@
#endif
/**
- * \brief Initialize and eturn the singleton BTstack run loop instance that integrates with the async_context API
+ * \brief Initialize and return the singleton BTstack run loop instance that integrates with the async_context API
* \ingroup pico_btstack
*
* \param context the async_context instance that provides the abstraction for handling asynchronous work.
