README.md in extzstd-0.2 vs README.md in extzstd-0.3

@@ -1,24 +1,10 @@
 # extzstd - ruby bindings for Zstd (Zstandard)
 
 This is unofficial ruby bindings for the data compression library
 [Zstd (Zstandard)](https://github.com/facebook/zstd).
 
-  * package name: extzstd
-  * version: 0.2
-  * product quality: TECHNICAL PREVIEW, UNSTABLE
-  * license: [BSD-2-clause License](LICENSE)
-  * author: dearblue <mailto:[e-mail]>
-  * project page: <https://github.com/dearblue/ruby-extzstd>
-  * support ruby: ruby-2.2+
-  * dependency ruby gems: (none)
-  * dependency library: (none)
-  * bundled external C library:
-      * [zstd-1.3.3](https://github.com/facebook/zstd)
-        under selectable dual licensed ([BSD-3-clause License](https://github.com/facebook/zstd/blob/v1.3.3/LICENSE) and [GNU General Public License, version 2](https://github.com/facebook/zstd/blob/v1.3.3/COPYING))
-        by [facebook](https://github.com/facebook)
-
 "extzstd" is supported decompression with the legacy formats (zstd-0.1 - 0.7).
 
   * [HISTORY (in Japanese)](HISTORY.ja.md)
   * [Quick reference](QUICKREF.md)
 
@@ -83,5 +69,22 @@
     p decoder.read(2)  # => "ij"
     p decoder.read     # => "klmn\nopqrstu\nvwxyz\n"
   end
 end
 ```
+
+
+## Specification
+
+  * package name: extzstd
+  * version: 0.3
+  * product quality: TECHNICAL PREVIEW, UNSTABLE
+  * license: [BSD-2-clause License](LICENSE)
+  * author: dearblue <mailto:[e-mail]>
+  * project page: <https://github.com/dearblue/ruby-extzstd>
+  * support ruby: ruby-2.4+
+  * dependency ruby gems: (none)
+  * dependency library: (none)
+  * bundled external C library (git submodules):
+      * [zstd-1.4.0](https://github.com/facebook/zstd)
+        under selectable dual licensed ([BSD-3-clause License](https://github.com/facebook/zstd/blob/v1.4.0/LICENSE) and [GNU General Public License, version 2](https://github.com/facebook/zstd/blob/v1.4.0/COPYING))
+        by [facebook](https://github.com/facebook)