Integrate .readthedocs.yaml, done using zopefoundation/meta#205.

.meta.toml

@@ -2,7 +2,7 @@
 # https://github.com/zopefoundation/meta/tree/master/config/zope-product
 [meta]
 template = "zope-product"
-commit-id = "4f0f7596"
+commit-id = "b21fbbf2"
 
 [python]
 with-pypy = false
@@ -25,6 +25,7 @@ additional-ignores = [
 
 [manifest]
 additional-rules = [
+    "include *.yaml",
     "recursive-include src *.gif",
     "recursive-include src *.objects",
     "recursive-include src *.png",

.readthedocs.yaml

@@ -0,0 +1,25 @@
+# Generated from:
+# https://github.com/zopefoundation/meta/tree/master/config/zope-product
+# Read the Docs configuration file
+# 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: "3.11"
+
+# Build documentation in the docs/ directory with Sphinx
+sphinx:
+  configuration: docs/conf.py
+
+# We recommend specifying your dependencies to enable reproducible builds:
+# https://docs.readthedocs.io/en/stable/guides/reproducible-builds.html
+python:
+  install:
+  - requirements: docs/requirements.txt
+  - method: pip
+    path: .

MANIFEST.in

@@ -12,6 +12,7 @@ recursive-include docs *.txt
 recursive-include docs Makefile
 
 recursive-include src *.py
+include *.yaml
 recursive-include src *.gif
 recursive-include src *.objects
 recursive-include src *.png

docs/requirements.txt

@@ -0,0 +1,5 @@
+Sphinx>4.3
+sphinx-rtd-theme>=1
+ZConfig
+Zope
+tempstorage

setup.cfg

@@ -19,9 +19,9 @@ ignore =
 force_single_line = True
 combine_as_imports = True
 sections = FUTURE,STDLIB,THIRDPARTY,ZOPE,FIRSTPARTY,LOCALFOLDER
-known_third_party = six, docutils, pkg_resources
+known_third_party = docutils, pkg_resources, pytz
 known_zope =
-known_first_party =Products.PluginRegistry, Products.StandardCacheManagers, Products.GenericSetup
+known_first_party = Products.PluginRegistry, Products.StandardCacheManagers, Products.GenericSetup
 default_section = ZOPE
 line_length = 79
 lines_after_imports = 2

tox.ini

@@ -71,6 +71,7 @@ commands =
 basepython = python3
 skip_install = true
 allowlist_externals =
+    {[testenv]allowlist_externals}
     mkdir
 deps =
     {[testenv]deps}