Andrew Lamb d1eea0755a Fix broken links in the documentation (#19964) ...

## Which issue does this PR close?
- Similarly to https://github.com/apache/datafusion/pull/19958

## Rationale for this change
I found some broken links in our docs using codex
]
<!--
Why are you proposing this change? If this is already explained clearly
in the issue then this section is not needed.
Explaining clearly why changes are proposed helps reviewers understand
your changes and offer better suggestions for fixes.
-->

## What changes are included in this PR?
Update broken links (will comment inline) 

## Are these changes tested?

By CI

## Are there any user-facing changes?

Better docs / fewer broken links

---------

Co-authored-by: Martin Grigorov <martin-g@users.noreply.github.com>

2026-01-25 22:02:46 +00:00

..

adding-udfs.md

Fix broken links in the documentation (#19964)

2026-01-25 22:02:46 +00:00

index.rst

[datafusion-spark] Example of using Spark compatible function library (#16384)

2025-06-14 22:40:13 -07:00

spark.md

[datafusion-spark] Example of using Spark compatible function library (#16384)

2025-06-14 22:40:13 -07:00