chore: update markdown

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Author: Shabareesh Shetty

lib/node_modules/@stdlib/blas/base/dtbmv/README.md

@@ -20,7 +20,7 @@ limitations under the License.
 
 # dtbmv
 
-> Solve one of the systems of equations `A*x = b` or `A^T*x = b`.
+> Perform one of the matrix-vector operations `x = A*x` or `x = A^T*x`.
 
 <section class="usage">
 
@@ -55,7 +55,7 @@ The function has the following parameters:
 -   **A**: input matrix stored in linear memory as a [`Float64Array`][mdn-float64array].
 -   **lda**: stride of the first dimension of `A` (a.k.a., leading dimension of the matrix `A`).
 -   **x**: input vector [`Float64Array`][mdn-float64array].
--   **sx**: `x` stride length.
+-   **sx**: stride length for `x`.
 
 The stride parameters determine how elements in the input arrays are accessed at runtime. For example, to iterate over the elements of `x` in reverse order,