readme: add link to the documentation

Author: Corvan

README.rst

@@ -6,10 +6,12 @@ API-client for https://github.com/axllent/mailpit written in Python
 -------------------------------------------------------------------
 
 :Authors:
-    Lars Liedtke <lars@familie-liedtke.net>
+    Lars Liedtke <corvan@gmx.de>
 :Version:
     0.12.0
 
+Go to the `documentation <https://corvan.github.io/mailpit-api-client/>`_
+
 ----------
 Motivation
 ----------

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "mailpit-api-client"
-version = "0.11.0"
+version = "0.12.0"
 description = "A Mailpit API Client"
 authors = [{name = "Lars Liedtke", email = "lars@familie-liedtke.net"}]
 requires-python = ">=3.8"
@@ -51,7 +51,7 @@ build = [
 
 [project.urls]
 repository = "https://github.com/Corvan/mailpit-api-client"
-
+Documentation = "https://corvan.github.io/mailpit-api-client/"
 
 [tool.poetry]
 name = "mailpit-api-client"