minor readme formatting update

README.md

@@ -1,14 +1,15 @@
- __Zstandard__, or `zstd` as short version, is a fast lossless compression algorithm,
- targeting real-time compression scenarios at zlib-level and better compression ratios.
+<p align="center"><img src="https://raw.githubusercontent.com/facebook/zstd/readme/doc/images/zstd_logo86.png" alt="Zstandard"></p>
 
-It is provided as an open-source BSD-licensed **C** library,
-and a command line utility producing and decoding `.zst` and `.gz` files.
-For other programming languages,
-you can consult a list of known ports on [Zstandard homepage](http://www.zstd.net/#other-languages).
+__Zstandard__, or `zstd` as short version, is a fast lossless compression algorithm,
+targeting real-time compression scenarios at zlib-level and better compression ratios.
+It's backed by a very fast entropy stage, provided by [Huff0 and FSE library](https://github.com/Cyan4973/FiniteStateEntropy).
 
-| dev branch status |
-|-------------------|
-| [![Build Status][travisDevBadge]][travisLink]   [![Build status][AppveyorDevBadge]][AppveyorLink]   [![Build status][CircleDevBadge]][CircleLink]
+The project is provided as an open-source BSD-licensed **C** library,
+and a command line utility producing and decoding `.zst`, `.gz`, `.xz` and `.lz4` files.
+Should your project require another programming language,
+a list of known ports and bindings is provided on [Zstandard homepage](http://www.zstd.net/#other-languages).
+
+Development branch status : [![Build Status][travisDevBadge]][travisLink]   [![Build status][AppveyorDevBadge]][AppveyorLink]   [![Build status][CircleDevBadge]][CircleLink]
 
 [travisDevBadge]: https://travis-ci.org/facebook/zstd.svg?branch=dev "Continuous Integration test suite"
 [travisLink]: https://travis-ci.org/facebook/zstd
@@ -17,8 +18,9 @@ you can consult a list of known ports on [Zstandard homepage](http://www.zstd.ne
 [CircleDevBadge]: https://circleci.com/gh/facebook/zstd/tree/dev.svg?style=shield "Short test suite"
 [CircleLink]: https://circleci.com/gh/facebook/zstd
 
+### Benchmarks
 
-As a reference, several fast compression algorithms were tested and compared
+For reference, several fast compression algorithms were tested and compared
 on a server running Linux Debian (`Linux version 4.8.0-1-amd64`),
 with a Core i7-6700K CPU @ 4.0GHz,
 using [lzbench], an open-source in-memory benchmark by @inikep
@@ -43,7 +45,9 @@ on the [Silesia compression corpus].
 [LZ4]: http://www.lz4.org/
 
 Zstd can also offer stronger compression ratios at the cost of compression speed.
-Speed vs Compression trade-off is configurable by small increments. Decompression speed is preserved and remains roughly the same at all settings, a property shared by most LZ compression algorithms, such as [zlib] or lzma.
+Speed vs Compression trade-off is configurable by small increments.
+Decompression speed is preserved and remains roughly the same at all settings,
+a property shared by most LZ compression algorithms, such as [zlib] or lzma.
 
 The following tests were run
 on a server running Linux Debian (`Linux version 4.8.0-1-amd64`)
@@ -56,8 +60,8 @@ Compression Speed vs Ratio | Decompression Speed
 ---------------------------|--------------------
 ![Compression Speed vs Ratio](doc/images/Cspeed4.png "Compression Speed vs Ratio") | ![Decompression Speed](doc/images/Dspeed4.png "Decompression Speed")
 
-Several algorithms can produce higher compression ratios, but at slower speeds, falling outside of the graph.
-For a larger picture including very slow modes, [click on this link](doc/images/DCspeed5.png).
+A few other algorithms can produce higher compression ratios at slower speeds, falling outside of the graph.
+For a larger picture including slow modes, [click on this link](doc/images/DCspeed5.png).
 
 
 ### The case for Small Data compression
@@ -99,19 +103,16 @@ Dictionary gains are mostly effective in the first few KB. Then, the compression
 `zstd -D dictionaryName --decompress FILE.zst`
 
 
-### Build
-
-Once you have the repository cloned, there are multiple ways provided to build Zstandard.
+### Build instructions
 
 #### Makefile
 
-If your system is compatible with a standard `make` (or `gmake`) binary generator,
-you can simply run it at the root directory.
-It will generate `zstd` within root directory.
+If your system is compatible with standard `make` (or `gmake`),
+invoking `make` in root directory will generate `zstd` cli in root directory.
 
 Other available options include:
-- `make install` : create and install zstd binary, library and man page
-- `make test` : create and run `zstd` and test tools on local platform
+- `make install` : create and install zstd cli, library and man pages
+- `make check` : create and run `zstd`, tests its behavior on local platform
 
 #### cmake
 
@@ -143,8 +144,8 @@ Zstandard is dual-licensed under [BSD](LICENSE) and [GPLv2](COPYING).
 
 ### Contributing
 
-The "dev" branch is the one where all contributions will be merged before reaching "master".
-If you plan to propose a patch, please commit into the "dev" branch or its own feature branch.
+The "dev" branch is the one where all contributions are merged before reaching "master".
+If you plan to propose a patch, please commit into the "dev" branch, or its own feature branch.
 Direct commit to "master" are not permitted.
 For more information, please read [CONTRIBUTING](CONTRIBUTING.md).