Fix documentation issues

Author: GuillaumeGomez

rand_distr/src/geometric.rs

@@ -143,7 +143,8 @@ impl Distribution<u64> for Geometric
 /// 
 /// See [`Geometric`](crate::Geometric) for the general geometric distribution.
 /// 
-/// Implemented via iterated [Rng::gen::<u64>().leading_zeros()].
+/// Implemented via iterated
+/// [`Rng::gen::<u64>().leading_zeros()`](Rng::gen::<u64>().leading_zeros()).
 /// 
 /// # Example
 /// ```

src/distributions/uniform.rs

@@ -52,7 +52,7 @@
 //! `low < high`). The example below merely wraps another back-end.
 //!
 //! The `new`, `new_inclusive` and `sample_single` functions use arguments of
-//! type SampleBorrow<X> to support passing in values by reference or
+//! type `SampleBorrow<X>` to support passing in values by reference or
 //! by value. In the implementation of these functions, you can choose to
 //! simply use the reference returned by [`SampleBorrow::borrow`], or you can choose
 //! to copy or clone the value, whatever is appropriate for your type.