[babylon-docs:master] Integrated: Links to latest presentations

[Paul Sandoz]

Add links to JVMLS 2025 and Devoxx Belgium 2025 talks.

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Commit messages:
 - Links to latest presentations.

Changes: https://git.openjdk.org/babylon-docs/pull/8/files
  Webrev: https://webrevs.openjdk.org/?repo=babylon-docs&pr=8&range=00
  Stats: 7 lines in 1 file changed: 7 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/babylon-docs/pull/8.diff
  Fetch: git fetch https://git.openjdk.org/babylon-docs.git pull/8/head:pull/8

PR: https://git.openjdk.org/babylon-docs/pull/8