Expand on the `sendTransaction` RPC method with SDK tutorials and examples

[briwylde08]

Get awarded: up to $200 worth of XLM
Section: Network - Soroban RPC - API Reference - Methods - sendTransaction
Example: https://developers.stellar.org/network/soroban-rpc/api-reference/methods/getLedgerEntries

[briwylde08]

Hi @Myestery!

Congratulations! Your contribution to Deep Dive Docs Bounty has been accepted! 🎉
Your submission qualifies for an award of $200 worth of XLM! Since you already completed KYC as part of a previous submission, we won't ask you to fill out the form again. This award will be combined with your previous submission and you should get it within one week.

Please let us know if you have any questions.

All the best,
Bri