Expand Examples to include curated list of SA demos

[webchick]

What was changed

This PR adds a new heading to the Example Applications page for... Example Applications. 🤣 These largely come from the https://github.com/temporal-sa/ namespace and show how to do a particular use case or a particular design pattern in Temporal.

What's here represents a "short list" of examples that the SA team has curated that are both a) broadly useful to customers and b) the author has opted in to increased visibility on their code. Because these examples plan to eventually be expanded into multiple languages, we also introduce the idea of indexing by thing you're solving and the programming language it's written in as a secondary consideration.

Big thanks to @steveandroulakis who led the charge here from the SA side.

Why?

See #311 for the wider rationale for this series of PRs.

Checklist

1. Closes [Feature Request] Expand the list of examples on the Example applications page #311

2. How was this tested:

• Solicited SA team for "short list" of their examples
• Drafted PR in a Google Doc to get the words right
• Checked all of the links for broken ones

3. Any docs updates needed?

Other than this, I don't think so!

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Name	Status	Preview	Comments	Updated (UTC)
temporal-learning	✅ Ready (Inspect)	Visit Preview	💬 Add feedback	Nov 8, 2024 5:55pm

[webchick]

Ok awesome, thank you so much for all the great tweak suggestions. They have now been incorporated.