Perform minor consistency cleanup (#3215)

* Perform minor consistency cleanup

* Avoid warnings during build

RELEASING.md

@@ -20,7 +20,7 @@
 5. Update version to, e.g. 5.0.0:
 
    - in ``altair/__init__.py``
-   - in ``doc/conf.py`` (two places)
+   - in ``doc/conf.py``
 
 6. Double-check that all vega-lite/vega/vega-embed versions are up-to-date:
 
@@ -54,19 +54,21 @@
 12. update version to, e.g. 5.1.0dev:
 
     - in ``altair/__init__.py``
-    - in ``doc/conf.py`` (two places)
+    - in ``doc/conf.py``
 
 13. add a new changelog entry for the unreleased version:
 
-       Version 5.1.0 (unreleased)
-       --------------------------
-
-       Enhancements
-       ~~~~~~~~~~~~
-       Bug Fixes
-       ~~~~~~~~~
-       Backward-Incompatible Changes
-       ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    ```
+    Version 5.1.0 (unreleased)
+    --------------------------
+
+    Enhancements
+    ~~~~~~~~~~~~
+    Bug Fixes
+    ~~~~~~~~~
+    Backward-Incompatible Changes
+    ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+    ```
 
 14. Commit change and push to main:
 

doc/releases/changes.rst

@@ -19,7 +19,7 @@ Version 5.1.2 (released Oct 3, 2023)
 ----------------------------------------
 
 - Update Vega-Lite from version 5.14.1 to version 5.15.1;
-  see `Vega-Lite Release Notes <https://github.com/vega/vega-lite/releases>`_.
+  see `Vega-Lite 5.15.1 Release Notes <https://github.com/vega/vega-lite/releases/tag/v5.15.1>`_.
 
 Bug Fixes
 ~~~~~~~~~
@@ -37,15 +37,15 @@ Version 5.1.0 (released August 28, 2023)
 ----------------------------------------
 
 - Update Vega-Lite from version 5.8.0 to version 5.14.1;
-  see `Vega-Lite Release Notes <https://github.com/vega/vega-lite/releases>`_.
+  see `Vega-Lite 5.14.1 Release Notes <https://github.com/vega/vega-lite/releases/tag/v5.14.1>`_.
 
 Enhancements
 ~~~~~~~~~~~~
 - Add ``chart.transformed_data()`` method to extract transformed chart data using VegaFusion (#3081, #3084, #3102)
 - Add ``"vegafusion"`` data transformer with mime renderer, save, and ``to_dict``/``to_json`` integration (#3094, #3107)
 - Add ``JupyterChart`` to support accessing params and selections from Python (See :ref:`user-guide-jupyterchart`)  (#3151)
 - Support field encoding inference for objects that support the DataFrame Interchange Protocol (#3114)
-- Support grouped bars inside time axis with time bins (see `Vega-Lite Release Notes <https://github.com/vega/vega-lite/releases/tag/v5.9.0>`_)
+- Support grouped bars inside time axis with time bins (see `Vega-Lite 5.9.0 Release Notes <https://github.com/vega/vega-lite/releases/tag/v5.9.0>`_)
 - Add new transform method `transform_extent` (#3148)
 - Add support for new referencing logic in version 4.18 of the jsonschema package
 - Add configurable pixels-per-inch (ppi) metadata to saved and displayed PNG images (#3163)
@@ -71,7 +71,7 @@ Version 5.0.0 (released May 9, 2023)
 ------------------------------------
 
 - Update Vega-Lite from version 4.17.0 to version 5.8.0;
-  see `Vega-Lite Release Notes <https://github.com/vega/vega-lite/releases>`_.
+  see `Vega-Lite 5.8.0 Release Notes <https://github.com/vega/vega-lite/releases/tag/v5.8.0>`_.
 
 Enhancements
 ~~~~~~~~~~~~
@@ -150,7 +150,7 @@ Version 4.2.0 (released Dec 29, 2021)
 -------------------------------------
 
 - Update Vega-Lite from version 4.8.1 to version 4.17.0;
-  see `Vega-Lite Release Notes <https://github.com/vega/vega-lite/releases>`_.
+  see `Vega-Lite 4.17.0 Release Notes <https://github.com/vega/vega-lite/releases/tag/v4.17.0>`_.
 
 Enhancements
 ~~~~~~~~~~~~
@@ -177,7 +177,7 @@ Version 4.1.0 (released April 1, 2020)
 
 - Minimum Python version is now 3.6
 - Update Vega-Lite to version 4.8.1; many new features and bug fixes from Vega-Lite
-  versions 4.1 through 4.8; see `Vega-Lite Release Notes <https://github.com/vega/vega-lite/releases>`_.
+  versions 4.1 through 4.8; see `Vega-Lite 4.8.0 Release Notes <https://github.com/vega/vega-lite/releases/tag/v4.8.0>`_.
 
 Enhancements
 ~~~~~~~~~~~~