Added smartcore and linfa Rust meta-crates
diff --git a/README.md b/README.md
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--- a/README.md
+++ b/README.md
@@ -1416,6 +1416,8 @@ be
 
 <a name="rust-general-purpose-machine-learning"></a>
 #### General-Purpose Machine Learning
+* [smartcore](https://github.com/smartcorelib/smartcore) - "The Most Advanced Machine Learning Library In Rust."
+* [linfa](https://github.com/rust-ml/linfa) - a comprehensive toolkit to build Machine Learning applications with Rust
 * [deeplearn-rs](https://github.com/tedsta/deeplearn-rs) - deeplearn-rs provides simple networks that use matrix multiplication, addition, and ReLU under the MIT license.
 * [rustlearn](https://github.com/maciejkula/rustlearn) - a machine learning framework featuring logistic regression, support vector machines, decision trees and random forests.
 * [rusty-machine](https://github.com/AtheMathmo/rusty-machine) - a pure-rust machine learning library.

SmartCore is a comprehensive library for machine learning and numerical computing. The library provides a set of tools for linear algebra, numerical computing, optimization, and enables a generic, powerful yet still efficient approach to machine learning.

Linfa is a comprehensive toolkit for statistical learning, providing algorithms for optimal model and density estimation.
It contains common learning algorithms such as Elastic Net, Support Vector Machines, Kernel Methods, Linear Decision Trees, etc. and bundles them together.