Deny broken_intradoc_links and verify documentation in CI

renderer/src/lib.rs

@@ -1,3 +1,16 @@
+#![forbid(rust_2018_idioms)]
+#![deny(
+    unsafe_code,
+    unused_results,
+    clippy::extra_unused_lifetimes,
+    clippy::from_over_into,
+    clippy::needless_borrow,
+    clippy::new_without_default,
+    clippy::useless_conversion,
+    rustdoc::broken_intra_doc_links
+)]
+#![allow(clippy::inherent_to_string, clippy::type_complexity)]
+#![cfg_attr(docsrs, feature(doc_auto_cfg))]
 pub mod compositor;
 
 #[cfg(feature = "geometry")]