Document more things

Also, test rustdoc in CI, and demote missing_docs from a deny to a
warning (but still deny it in CI).

1 files changed, 1 insertions, 1 deletions

diff --git a/src/lib.rs b/src/lib.rs
index 1ae63810..7a64b97a 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -11,7 +11,7 @@
 #![deny(unstable_features)]
 #![deny(missing_copy_implementations)]
 #![deny(missing_debug_implementations)]
-#![deny(missing_docs)]
+#![warn(missing_docs)]
 
 // Re-exported external crates
 pub use libc;