fix pypi classifiers (#634)

Fixes: #587

Author: ssbarnea

setup.cfg

@@ -10,8 +10,14 @@ description-file =
 # Do not include ChangeLog in description-file due to multiple reasons:
 # - Unicode chars, see https://github.com/pycontribs/jira/issues/512
 # - Breaks ability to perform `python setup.py install`
-
+description-content-type = text/plain; charset=UTF-8
 home-page = https://github.com/pycontribs/jira
+project_urls =
+    Bug Tracker = https://github.com/pycontribs/jira/issues
+    Source Code = https://github.com/pycontribs/jira.git
+    Documentation = https://jira.readthedocs.io/en/master/
+requires-python = >=2.7
+
 license = BSD
 classifier =
     Development Status :: 5 - Production/Stable
@@ -26,15 +32,10 @@ classifier =
     Programming Language :: Python :: 3.4
     Programming Language :: Python :: 3.5
     Programming Language :: Python :: 3.6
+    Programming Language :: Python :: 3.7
     Topic :: Software Development :: Libraries :: Python Modules
     Topic :: Internet :: WWW/HTTP
-keywords =
-    api
-    atlassian
-    jira
-    rest
-    web
-    rest
+keywords = api, atlassian, jira, rest, web
 
 [files]
 packages =