Use consistent Markdown style

Author: lpinca

README.md

@@ -3,11 +3,10 @@
 Most strings online are in unicode using the UTF-8 encoding. Validating strings
 quickly before accepting them is important.
 
-
-
 ## How to use is_utf8
 
-This is a simple one-source file library to validate UTF-8 strings at high speeds using SIMD instructions. It works on all platforms (ARM, x64).
+This is a simple one-source file library to validate UTF-8 strings at high
+speeds using SIMD instructions. It works on all platforms (ARM, x64).
 
 Build and link `is_utf8.cpp` with your project. Code usage:
 
@@ -20,30 +19,43 @@ Build and link `is_utf8.cpp` with your project. Code usage:
 
 It should be able to validate strings using less than 1 cycle per input byte.
 
-Real-word usage
-------
-
-This C++ library is part of the JavaScript package [utf-8-validate](https://github.com/websockets/utf-8-validate). The utf-8-validate package is routinely downloaded more than [a million times per week](https://www.npmjs.com/package/utf-8-validate).
+## Real-word usage
 
-If you are using Node JS (19.4.0 or better), you already have access to this function as `buffer.isUtf8(...)`.
+This C++ library is part of the JavaScript package
+[utf-8-validate](https://github.com/websockets/utf-8-validate). The
+utf-8-validate package is routinely downloaded more than
+[a million times per week](https://www.npmjs.com/package/utf-8-validate).
 
+If you are using Node JS (19.4.0 or better), you already have access to this
+function as `buffer.isUtf8(...)`.
 
+## Requirements
 
-Requirements
--------
-
-- C++11 compatible compiler. We support LLVM clang, GCC, Visual Studio. (Our optional benchmark tool requires C++17.)
+- C++11 compatible compiler. We support LLVM clang, GCC, Visual Studio. (Our
+  optional benchmark tool requires C++17.)
 - For high speed, you should have a recent 64-bit system (e.g., ARM or x64).
 - If you rely on CMake, you should use a recent CMake (at least 3.15).
-- AVX-512 support require a processor with AVX512-VBMI2 (Ice Lake or better) and a recent compiler (GCC 8 or better, Visual Studio 2019 or better, LLVM clang 6 or better). You need a correspondingly recent assembler such as gas (2.30+) or nasm (2.14+): recent compilers usually come with recent assemblers. If you mix a recent compiler with an incompatible/old assembler (e.g., when using a recent compiler with an old Linux distribution), you may get errors at build time because the compiler produces instructions that the assembler does not recognize: you should update your assembler to match your compiler (e.g., upgrade binutils to version 2.30 or better under Linux) or use an older compiler matching the capabilities of your assembler. 
+- AVX-512 support require a processor with AVX512-VBMI2 (Ice Lake or better) and
+  a recent compiler (GCC 8 or better, Visual Studio 2019 or better, LLVM clang 6
+  or better). You need a correspondingly recent assembler such as gas (2.30+) or
+  nasm (2.14+): recent compilers usually come with recent assemblers. If you mix
+  a recent compiler with an incompatible/old assembler (e.g., when using a
+  recent compiler with an old Linux distribution), you may get errors at build
+  time because the compiler produces instructions that the assembler does not
+  recognize: you should update your assembler to match your compiler (e.g.,
+  upgrade binutils to version 2.30 or better under Linux) or use an older
+  compiler matching the capabilities of your assembler.
 
 ## Reference
 
-- John Keiser, Daniel Lemire, [Validating UTF-8 In Less Than One Instruction Per Byte](https://arxiv.org/abs/2010.03090), Software: Practice & Experience 51 (5), 2021
+- John Keiser, Daniel Lemire,
+  [Validating UTF-8 In Less Than One Instruction Per Byte](https://arxiv.org/abs/2010.03090),
+  Software: Practice & Experience 51 (5), 2021
 
-### Want more?
+## Want more?
 
-If you want a wide range of fast Unicode function for production use, you can rely on the simdutf library. It is as simple as the following:
+If you want a wide range of fast Unicode function for production use, you can
+rely on the simdutf library. It is as simple as the following:
 
 ```C++
 #include "simdutf.cpp"
@@ -64,12 +76,11 @@ int main(int argc, char *argv[]) {
 
 See https://github.com/simdutf/
 
-
 ## License
 
-This library is distributed under the terms of any of the following
-licenses, at your option:
+This library is distributed under the terms of any of the following licenses, at
+your option:
 
-* Apache License (Version 2.0) [LICENSE-APACHE](LICENSE-APACHE),
-* Boost Software License [LICENSE-BOOST](LICENSE-BOOST), or
-* MIT License [LICENSE-MIT](LICENSE-MIT).
+- Apache License (Version 2.0) [LICENSE-APACHE](LICENSE-APACHE),
+- Boost Software License [LICENSE-BOOST](LICENSE-BOOST), or
+- MIT License [LICENSE-MIT](LICENSE-MIT).