add path to sphinx configuration

docs/conf.py

@@ -3,14 +3,20 @@
 #
 # For the full list of built-in configuration values, see the documentation:
 # https://www.sphinx-doc.org/en/master/usage/configuration.html
+import sys
+from pathlib import Path
+
+sys.path.insert(0, str(Path(__file__).resolve().parent))
 
 # -- Project information -----------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#project-information
 
+from pygeoif import about  # noqa: E402
+
 project = "pygeoif"
 copyright = "2023, Christian Ledermann"  # noqa: A001
 author = "Christian Ledermann"
-release = "1.2"
+release = about.__version__
 
 # -- General configuration ---------------------------------------------------
 # https://www.sphinx-doc.org/en/master/usage/configuration.html#general-configuration