Update README.md

Improve description of Russell

README.md

@@ -1063,7 +1063,7 @@ See also [About Rust’s Machine Learning Community](https://medium.com/@autumn_
   * [autumnai/collenchyma](https://github.com/autumnai/collenchyma) — An extensible, pluggable, backend-agnostic framework for parallel, high-performance computations on CUDA, OpenCL and common host CPU.
   * [luqmana/rust-opencl](https://github.com/luqmana/rust-opencl) — [OpenCL](https://www.khronos.org/opencl/) bindings
 * Science
-  * [cpmech/russell](https://github.com/cpmech/russell) — Rust Scientific Library (Russell) for numerical mathematics, differential equations, special math functions, high-performance linear algebra (sparse), and more
+  * [cpmech/russell](https://github.com/cpmech/russell) — Rust Scientific Library for numerical mathematics, ordinary differential equations, special math functions, high-performance (sparse) linear algebra
   * [indigits/scirust](https://github.com/indigits/scirust) — Scientific computing library
 * Statrs
   * [statrs-dev/statrs](https://github.com/statrs-dev/statrs) — Robust statistical computation library