docs: Add integration to readthedocs.

.readthedocs.yaml

@@ -0,0 +1,19 @@
+# Read the Docs configuration file for MkDocs projects
+# See https://docs.readthedocs.io/en/stable/config-file/v2.html for details
+
+# Required
+version: 2
+
+# Set the version of Python and other tools you might need
+build:
+  os: ubuntu-22.04
+  tools:
+    python: "3.12"
+
+mkdocs:
+  configuration: mkdocs.yml
+
+# Optionally declare the Python requirements required to build your docs
+python:
+  install:
+  - requirements: docs/requirements.txt

docs/requirements.txt

@@ -0,0 +1,4 @@
+mkdocs-material
+mkdocs
+mkdocstrings-python
+griffe-fieldz

requirements-dev.txt

@@ -2,8 +2,4 @@ pytest-mock
 pytest
 pytest-cov
 testcontainers
-mkdocs-material
-mkdocs
-mkdocstrings-python
-griffe-fieldz
 pre-commit