Enhancements to Solana's Documentations for Better Clarity

[joaolago1113]

I've gone through some of the documentation and noticed a few spots where a little polishing could really enhance the reader's experience. With that in mind, I've made a handful of edits that I think will make a difference. Here's a quick rundown:

1. Get Started Overview (commit 78bf40b): I tweaked the introduction a bit for smoother reading and fixed a small typo.
2. Validator Runtime (commit cdd5070): Spotted a few grammatical hiccups and clarified some points around transaction execution.
3. Validator Gossip (commit d2f1dbd): Ironed out some grammatical wrinkles to make things clearer.
4. Transaction Fees (commit 6428e96): Updated a hyperlink for better navigation and corrected a couple of spelling errors.
5. Staking (commit ff9c493): Added a missing word in the 'Delegate your Stake' section to guide users better.
6. Metrics and Networking (commit e3a0b5a): Fixed a few typos and fine-tuned the language for better understanding.
7. Geyser Plugin Interface (commit e7688b5): Adjusted some grammatical details for consistency and clarity.
8. CI Setup Instructions (commit 9bd82d7): Caught and corrected a typo in the setup instructions.
9. Security Incident Response Process (commit 3b9665c): Made a small grammatical correction for clearer understanding.

Thanks for all the incredible work you do, and for considering these suggestions!

[CriesofCarrots]

Thanks, this mostly looks good. One quibble.

[CriesofCarrots]

Some of these docs were just moved to a different repo. Fixes made in this PR to those files should be reflected here: solana-foundation/developer-content#34

[nickfrosty]

All changes look good!