Improve documentation

Signed-off-by: Philippe Ombredanne <pombredanne@nexb.com>

Author: pombredanne

CHANGELOG.rst

@@ -4,8 +4,18 @@ Release notes
 vNext
 -----
 
+Version 21.1.21
+---------------
+
+*2021-01-21*
+- Fix bug related to commoncode libraries loading
+- improve the extra requirements
+- set minimum version for dependencies
+- Improve documentation
+
+
 Version 21.1.15
--------------
+---------------
 
 *2021-01-15*
 - Drop support for Python 2

README.rst

@@ -4,7 +4,7 @@ ExtractCode
 - license: Apache-2.0
 - copyright: copyright (c) nexB. Inc. and others
 - homepage_url: https://github.com/nexB/extractode
-- keywords: archiev, extraction, libarchive, 7zip, scancode-toolkit
+- keywords: archive, extraction, libarchive, 7zip, scancode-toolkit
 
 
 ExtractCode is a universal archive extractor. It uses behind the scenes 

extractcode.ABOUT

@@ -0,0 +1,13 @@
+about_resource: .
+copyright: copyright (c) nexB. Inc. and others
+description: A mostly universal archive extractor using z7zip, libarchve, other 
+ libraries and the Python standard library for reliable archive extraction.
+ It is used by ScanCode toolkit and related projects 
+keywords: archive, extraction, libarchive, 7zip, scancode-toolkit
+homepage_url: https://github.com/nexB/extractcode
+holder: nexB. Inc. and others
+holder_contact: info@aboutcode.org
+license_expression: apache-2.0
+name: extractcode
+package_url: pkg:pypi/extractcode
+primary_language: Python

setup.cfg

@@ -10,7 +10,7 @@ author_email = info@aboutcode.org
 license = Apache-2.0
 
 # description must be on ONE line https://github.com/pypa/setuptools/issues/1390
-description = A set of utilities and functions for extracting archives.
+description = A mostly universal archive extractor using z7zip, libarchve, other libraries and the Python standard library for reliable archive extraction.
 long_description = file:README.rst
 url = https://github.com/nexB/extractcode
 classifiers =