correct all gramatical mistakes pointed by
@@ -133,18 +133,18 @@ impl<T> CooMatrix<T> {
/// Reserves capacity for COO matrix by at least `additional` elements.
///
/// This increase the capacities of triplet holding arrays by reserving more space to avoid
- /// frequent reallocations, in `push` operations.
+ /// frequent reallocations in `push` operations.
///
/// ## Panics
///
- /// Panics if any of the individual allocation of triplet arrays fail.
+ /// Panics if any of the individual allocation of triplet arrays fails.
///
/// ## Example
///
/// ```
/// # use nalgebra_sparse::coo::CooMatrix;
/// let mut coo = CooMatrix::new(4, 4);
- /// // Reserver capacity in advance
+ /// // Reserve capacity in advance
/// coo.reserve(10);
/// coo.push(1, 0, 3.0);
/// ```
