Update README.md

[gigikenneth]

updated Events - Shiny Gathering on Rhino with YouTube link

Have you read the Contributing Guidelines?

Issue #

Description

Clear and concise description of what changed and why. If necessary, include screenshots and/or a step-by-step guide on how to test the changes.

Definition of Done

• [ ] The change is thoroughly documented.
• [ ] The CI passes (R CMD check, linter, unit tests, spelling).
• [ ] Any generated files have been updated (e.g. .Rd files with roxygen2::roxygenise())

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 38.55%. Comparing base (8066bfb) to head (a2a2a0b).

:exclamation: Current head a2a2a0b differs from pull request most recent head 9647334. Consider uploading reports for the commit 9647334 to get more accurate results

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Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #579 +/- ## ======================================= Coverage 38.55% 38.55% ======================================= Files 10 10 Lines 594 594 ======================================= Hits 229 229 Misses 365 365 ```

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