docs: fix broken links in tutorials/create-event-with-attendees.rst

[sangamithraashok244-ship-it]

Fixes broken links in the tutorials file as part of issue #1158.
Removed the ~ prefix from :class: and :meth: references to make links fully qualified.

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📚 Documentation preview 📚: https://icalendar--1455.org.readthedocs.build/en/1455/

[read-the-docs-community]

Documentation build overview

📚 icalendar | 🛠️ Build #33125405 | 📁 Comparing 309fe85 against latest (acc0a15)

  🔍 Preview build  

2 files changed

± 404.html
± tutorials/create-event-with-attendees.html

[stevepiercy]

@sangamithraashok244-ship-it thank you for your contribution.

I wonder whether you tried the links before changing them? The links appear to work as is, and the ~ changes the rendering of the links to the last segment of the Python object's dotted path. This is often desirable. See https://www.sphinx-doc.org/en/master/usage/domains/python.html#target-specification.

You can build the documentation locally to test. See https://icalendar.readthedocs.io/en/stable/contribute/documentation/build-check.html.

Also please see our Contribute guide for pull request requirements.

Please let me know. Thank you!