fix the docs

docs/changelog.rst

 Changelog
 =========
 
-v1.3
+v3.0
 ----
 
 * switched to GitHub Actions for CI/CD

setup.cfg

 # coding: utf-8
 [metadata]
-version = 2.12
+version = 3.0
 name = minijson
 long_description = file: README.md
 long_description_content_type = text/markdown; charset=UTF-8
@@ -9,11 +9,11 @@ license_files =
     LICENSE
 author_email = piotr.maslanka@dronehub.ai
 description = A library for serializing JSON in a small binary format
-url = https://github.com/Dronehub/minijson
+url = https://github.com/smok-serwis/minijson
 project_urls =
     Documentation = https://minijson.readthedocs.io/
-	Code = https://github.com/Dronehub/minijson
-	Issue tracker = https://github.com/Dronehub/minijson/issues
+	Code = https://github.com/smok-serwis/minijson
+	Issue tracker = https://github.com/smok-serwis/minijson/issues
 classifier =
     Development Status :: 5 - Production/Stable
     Programming Language :: Python