Update README.md

Author: grisuthedragon

README.md

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 [![License](https://img.shields.io/badge/License-BSD_3--Clause-blue.svg)](https://github.com/SLICOT/SLICOT-Reference/blob/main/LICENSE)
 
 **SLICOT** - _Subroutine Library In COntrol Theory_ - is a general purpose basic
-mathematical library for control theoretical computations.  The library
-provides tools to perform essential system analysis and synthesis tasks.
-The main emphasis in SLICOT is on numerical reliability of implemented
-algorithms and the numerical robustness and efficiency of routines.
-Providing algorithmic flexibility and the use of rigorous implementation
-and documentation standards are other SLICOT features.
-
-The SLICOT Library is available as standard Fortran 77 code in double
-precision.  Each user-callable subroutine for control computations is
-accompanied by an example program which illustrates the use of the
-subroutine and can act as a template for the user's own routines.
-
-The SLICOT Library is organized by chapters, sections and subsections.
-The following chapters are currently included:
-
-A : Analysis Routines
-
-B : Benchmark and Test Problems
-
-D : Data Analysis
-
-F : Filtering
-
-I : Identification
-
-M : Mathematical Routines
-
-N : Nonlinear Systems
-    (not yet available, except for some auxiliary routines for Wiener systems)
-    
-S : Synthesis Routines
-
-T : Transformation Routines
-
-U : Utility Routines
-
-SLICOT Library Root Directory contains few, basic files for the SLICOT Library
-distribution and generation.  When distributed, SLICOT software comes with
-several filled-in subdirectories (benchmark_data, doc, examples, src, and src_aux),
-and the following files in this root directory:
-
-- this file, README.md,
-
-- the contributors to the library and financial support, Contributors.md,
-
-- the license file, LICENSE, and
-
-- the main SLICOT Library documentation index, libindex.html.
-
-After software installation, this directory will also contain the library 
-files slicot.a and lpkaux.a, or slicot.lib and lpkaux.lib, for Unix or 
-Windows platforms, respectively.
-The library files could then be linked in applications programs, as usual.
-Specific examples are contained in the directory examples.
-The on-line documentation of the SLICOT user's callable routines is
-accessible via the main SLICOT Library documentation index, libindex.html.
-This file also contains a link to the documentation of the lower-level,
-support routines.
-
-The SLICOT Library is built on LAPACK (Linear Algebra PACKage) and BLAS
-(Basic Linear Algebra Subprograms) collections.  Therefore, these
-packages should be available on the platform used.
-
-Basic References:
-
-1. P. Benner, V. Mehrmann, V. Sima, S. Van Huffel, and A. Varga,
-   "SLICOT - A Subroutine Library in Systems and Control Theory",
-   Applied and Computational Control, Signals, and Circuits
-   (Birkhauser), Vol. 1, Ch. 10, pp. 505-546, 1999.
-
-2. S. Van Huffel, V. Sima, A. Varga, S. Hammarling, and F. Delebecque,
-   "Development of High Performance Numerical Software for Control",
-   IEEE Control Systems Magazine, Vol. 24, Nr. 1, Feb., pp. 60-76, 2004.
+mathematical library for control theoretical computations. The library provides
+tools to perform essential system analysis and synthesis tasks. The main
+emphasis in SLICOT is on numerical reliability of implemented algorithms and
+the numerical robustness and efficiency of routines. Providing algorithmic
+flexibility and the use of rigorous implementation and documentation standards
+are other SLICOT features.
+
+The SLICOT Library is available as standard Fortran 77 code in double precision.
+Each user-callable subroutine for control computations is accompanied by an
+example program which illustrates the use of the subroutine and can act as a
+template for the user's own routines.
+
+The SLICOT Library is organized by chapters, sections, and subsections. The
+following chapters are currently included:
+
+- **A**: Analysis Routines
+- **B**: Benchmark and Test Problems
+- **D**: Data Analysis
+- **F**: Filtering
+- **I**: Identification
+- **M**: Mathematical Routines
+- **N**: Nonlinear Systems (not yet available, except for some auxiliary routines for Wiener systems)
+- **S**: Synthesis Routines
+- **T**: Transformation Routines
+- **U**: Utility Routines
+
+The SLICOT Library Root Directory contains few, basic files for the SLICOT
+Library distribution and generation. When distributed, SLICOT software comes
+with several filled-in subdirectories (`benchmark_data`, `doc`, `examples`,
+and `src`), and the following files in this root directory:
+
+- this file, `README.md`,
+- the install instructions, `INSTALL.md`
+- the contributors to the library and financial support, `Contributors.md`,
+- the license file, `LICENSE`, and
+- the main SLICOT Library documentation index, `libindex.html`.
+
+The SLICOT Library is built on LAPACK (Linear Algebra PACKage) and
+BLAS (Basic Linear Algebra Subprograms) collections. Therefore, these packages
+should be available on the platform used.
+
+**Basic References:**
+
+1. P. Benner, V. Mehrmann, V. Sima, S. Van Huffel, and A. Varga, "SLICOT - A Subroutine Library in Systems and Control Theory", Applied and Computational Control, Signals, and Circuits (Birkhauser), Vol. 1, Ch. 10, pp. 505-546, 1999.
+
+2. S. Van Huffel, V. Sima, A. Varga, S. Hammarling, and F. Delebecque, "Development of High Performance Numerical Software for Control", IEEE Control Systems Magazine, Vol. 24, Nr. 1, Feb., pp. 60-76, 2004.