Mark docs examples to not test.

src/bterm.rs

@@ -3,7 +3,7 @@
 //! This may be convenient if drawing to Bracket Terminal only through Ratatui. Otherwise, the
 //! [draw batch interface][crate::draw_batch] is probably more convenient.
 //!
-//! ```rust,no_run
+//! ```rust,ignore
 //! fn tick(&mut self, ctx: &mut BTerm) {
 //!     Terminal::new(self.backend_man.get(ctx))
 //!         .expect("failed to make ratatui terminal")

src/draw_batch.rs

@@ -1,6 +1,6 @@
 //! Backends which draw to a Bracket [DrawBatch].
 //!
-//! ```rust,no_run
+//! ```rust,ignore
 //! fn tick(&mut self, ctx: &mut BTerm) {
 //!     self.term.backend_mut().update(ctx);
 //!     self.term