chore(site): fix trailing links

[xushiyan]

Trailing slash urls can break generated docs links from relative docs url.

Example:

From this page https://hudi.apache.org/docs/concurrency_control/ , click on links ref to other docs page from the concurrency control page won't work, like it could become https://hudi.apache.org/docs/concurrency_control/sql_dml which does not exist (it should be https://hudi.apache.org/docs/sql_dml)

[Copilot]

Pull request overview

This PR fixes trailing slash issues in documentation URLs across blog posts to prevent broken links when navigating from pages with trailing slashes. The issue occurred when relative documentation links were accessed from URLs ending with a trailing slash (e.g., /concurrency_control/), causing incorrect URL concatenation that resulted in non-existent paths.

Key Changes

• Removed trailing slashes from all Hudi documentation base URLs
• Changed anchor link format from /#anchor to #anchor across all documentation references

Reviewed changes

Copilot reviewed 13 out of 13 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
website/blog/2025-11-12-deep-dive-into-hudis-indexing-subsystem-part-2-of-2.md	Fixed 3 documentation links related to SQL DDL and async indexing
website/blog/2025-11-07-how-freewheel-uses-apache-hudi-to-power-its-data-lakehouse.mdx	Fixed 7 documentation links for write operations, table types, concurrency control, and clustering
website/blog/2025-07-21-mor-comparison.md	Fixed 2 documentation links for SQL queries and table types
website/blog/2025-04-02-secondary-index.md	Fixed 1 documentation link for indexing capability
website/blog/2025-03-05-hudi-21-unique-differentiators.mdx	Fixed 2 documentation links for write operations and markers
website/blog/2025-03-03-record-mergers-in-hudi.mdx	Fixed 3 documentation links for configurations and record merger/payloads
website/blog/2025-01-28-concurrency-control.md	Fixed 1 documentation link for timeline documentation
website/blog/2025-01-15-outofbox-key-generators-in-hudi.mdx	Fixed 1 documentation link for timestamp-based key generator
website/blog/2024-07-30-data-lake-cdc.md	Fixed 1 documentation link for schema evolution
website/blog/2024-07-11-what-is-a-data-lakehouse.md	Fixed 1 documentation link for indexing mechanism
website/blog/2022-12-29-Apache-Hudi-2022-A-Year-In-Review.mdx	Fixed 3 documentation links for BigQuery, schema evolution, procedures, and encryption
website/blog/2022-01-14-change-data-capture-with-debezium-and-apache-hudi.mdx	Fixed 2 documentation links for overview and checkpointing
website/blog/2022-01-06-apache-hudi-2021-a-year-in-review.mdx	Fixed 2 documentation links for writing data and streaming ingestion

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