Make the link to the general documentation more visible

Author: IvanUkhov

README.md

@@ -2,7 +2,9 @@
 
 The package provides a source of [BLAS] and [LAPACK] via [Netlib].
 
-The usage of the package is explained [here][usage].
+## [Architecture]
+
+## Configuration
 
 The following Cargo features are supported:
 
@@ -18,10 +20,10 @@ Your contribution is highly appreciated. Do not hesitate to open an issue or a
 pull request. Note that any contribution submitted for inclusion in the project
 will be licensed according to the terms given in [LICENSE.md](LICENSE.md).
 
+[architecture]: https://blas-lapack-rs.github.io/architecture
 [blas]: https://en.wikipedia.org/wiki/BLAS
 [lapack]: https://en.wikipedia.org/wiki/LAPACK
 [netlib]: http://www.netlib.org/
-[usage]: https://blas-lapack-rs.github.io/usage
 
 [build-img]: https://travis-ci.org/blas-lapack-rs/netlib-src.svg?branch=master
 [build-url]: https://travis-ci.org/blas-lapack-rs/netlib-src

src/lib.rs

@@ -1,6 +1,8 @@
 //! Source of [BLAS] and [LAPACK] via [Netlib].
 //!
-//! The usage of the package is explained [here][usage].
+//! ## [Architecture]
+//!
+//! ## Configuration
 //!
 //! The following Cargo features are supported:
 //!
@@ -10,9 +12,9 @@
 //! * `system` to skip building the bundled Netlib, and
 //! * `tmg` to build TMG (enabled by default).
 //!
+//! [architecture]: https://blas-lapack-rs.github.io/architecture
 //! [blas]: https://en.wikipedia.org/wiki/BLAS
 //! [lapack]: https://en.wikipedia.org/wiki/LAPACK
 //! [netlib]: http://www.netlib.org/
-//! [usage]: https://blas-lapack-rs.github.io/usage
 
 #![no_std]