Fix typos.

src/lib.rs

@@ -67,7 +67,7 @@
 //!
 //! Although any Rust type that implements `Event`, `RoomEvent`, or `StateEvent` can serve as a
 //! Matrix event type, ruma_events also includes a few convenience types for representing events
-//! that are not convered by the spec and not otherwise known by the application.
+//! that are not covered by the spec and not otherwise known by the application.
 //! `CustomEvent`, `CustomRoomEvent`, and `CustomStateEvent` are simple implementations of their
 //! respective event traits whose `content` field is simply a `serde_json::Value` value, which
 //! represents arbitrary JSON.

src/stripped.rs

@@ -1,7 +1,7 @@
 //! "Stripped-down" versions of the core state events.
 //!
 //! Each "stripped" event includes only the `content`, `type`, and `state_key` fields of its full
-//! version. These stripped types are useful for APIs where the a is providing the content of a
+//! version. These stripped types are useful for APIs where the user is providing the content of a
 //! state event to be created, when the other fields can be inferred from a larger context, or where
 //! the other fields are otherwise inapplicable.