[doc] Update documentation for unidata.py script

Change-Id: Ia39b20cfa7eb4d4884ff2a70e6b1596391109500
---
M scripts/maintenance/unidata.py
M scripts/CHANGELOG.rst
M scripts/README.rst
M docs/scripts_ref/scripts.maintenance.rst
M docs/scripts/maintenance.rst
5 files changed, 39 insertions(+), 3 deletions(-)

diff --git a/docs/scripts/maintenance.rst b/docs/scripts/maintenance.rst
index bc26c71..5cf355a 100644
--- a/docs/scripts/maintenance.rst
+++ b/docs/scripts/maintenance.rst
@@ -16,10 +16,23 @@
    :no-members:
    :noindex:
 
+make\_i18n\_dict script
+=======================
+
+.. automodule:: scripts.maintenance.make_i18n_dict
+   :no-members:
+   :noindex:
+
+unidata script
+==============
+
+.. automodule:: scripts.maintenance.unidata
+   :no-members:
+   :noindex:
+
 wikimedia\_sites script
 =======================
 
 .. automodule:: scripts.maintenance.wikimedia_sites
    :no-members:
    :noindex:
-
diff --git a/docs/scripts_ref/scripts.maintenance.rst b/docs/scripts_ref/scripts.maintenance.rst
index ab32f10..54a0e2d 100644
--- a/docs/scripts_ref/scripts.maintenance.rst
+++ b/docs/scripts_ref/scripts.maintenance.rst
@@ -25,6 +25,11 @@
 
 .. automodule:: scripts.maintenance.make_i18n_dict
 
+scripts.maintenance.unidata
+---------------------------
+
+.. automodule:: scripts.maintenance.unidata
+
 scripts.maintenance.wikimedia\_sites
 ------------------------------------
 
diff --git a/scripts/CHANGELOG.rst b/scripts/CHANGELOG.rst
index 8f7b62d..7c38049 100644
--- a/scripts/CHANGELOG.rst
+++ b/scripts/CHANGELOG.rst
@@ -15,6 +15,12 @@
 
 * Enable ``-touch`` in newitem script for confirmed user (:phab:`T343877`)
 
+maintenance
+~~~~~~~~~~~
+
+* new script unidata to update ``_first_upper_exception_dict`` of
+  :mod:`pywikibot.tools._unidata`.
+
 
 8.3.0
 -----
diff --git a/scripts/README.rst b/scripts/README.rst
index 562694b..68610ad 100644
--- a/scripts/README.rst
+++ b/scripts/README.rst
@@ -170,6 +170,8 @@
 +------------------------+---------------------------------------------------------+
 | make_i18n_dict.py      | Generate an i18n file from a given script.              |
 +------------------------+---------------------------------------------------------+
+| unidata.py             | Updates _first_upper_exception_dict in tools.unidata    |
++------------------------+---------------------------------------------------------+
 | wikimedia_sites.py     | Updates the language lists in Wikimedia family files.   |
 +------------------------+---------------------------------------------------------+
 
diff --git a/scripts/maintenance/unidata.py b/scripts/maintenance/unidata.py
index cf20dca..2d6b03a 100644
--- a/scripts/maintenance/unidata.py
+++ b/scripts/maintenance/unidata.py
@@ -1,12 +1,13 @@
 #!/usr/bin/env python3
 """Script to update :mod:`pywikibot.tools._unidata`.
 
-This script is for updating ``_first_upper_exception_dict``. Run this
-module multiple times using different python versions.
+This script is for updating ``_first_upper_exception_dict``.
 
 .. note:: I seems that running under the latest version of Python gives
    a superse of the older version and should be enough. But this is not
    tested completely.
+
+.. versionadded:: 8.4
 """
 #
 # (C) Pywikibot team, 2018-2023

