Fix package documentation

Author: codingjoe

README.md

@@ -7,15 +7,15 @@ Syntax](https://docs.python.org/3/library/string.html#format-string-syntax).
 
 ### Installation
 
-``` sourceCode bash
+```
 pip install django-dynamic-filenames[slugify]
 ```
 
 ### Samples
 
 Basic example:
 
-``` sourceCode python
+```
 from django.db import models
 from dynamic_names import FilePattern
 
@@ -91,7 +91,7 @@ You can also use a special slug type specifier, that slugifies strings.
 
 Example:
 
-``` sourceCode python
+```
 from django.db import models
 from dynamic_names import FilePattern
 

setup.cfg

@@ -3,15 +3,19 @@ name = django-dynamic-filenames
 author = Johannes Hoppe
 author-email = info@johanneshoppe.com
 summary = Write advanced filename patterns using the Format String Syntax.
-description-file = README.md
-description-content-type = text/markdown; charset=UTF-8
+long-description = file: README.md
+long_description_content_type = text/markdown
 home-page = https://github.com/codingjoe/django-dynamic-filenames
-license = MIT
+project_urls =
+    Bug Tracker = https://github.com/codingjoe/django-dynamic-filenames
+    Documentation = https://www.johanneshoppe.com/django-dynamic-filenames/
+    Source Code = https://github.com/codingjoe/django-dynamic-filenames
+license = MIT License
 classifier =
     Development Status :: 5 - Production/Stable
     Environment :: Web Environment
     Intended Audience :: Developers
-    License :: OSI Approved :: MIT License±
+    License :: OSI Approved :: MIT License
     Operating System :: OS Independent
     Programming Language :: Python
     Programming Language :: Python :: 3