Modify link of the document targeting the GitHub URL listed wrong comments

[saito-kosuke]

Problem

The available here link of the document below
https://docs.solana.com/running-validator/validator-start#limiting-ledger-size-to-conserve-disk-space
is targeting the GitHub URL listed wrong comments.

Summary of Changes

I update the current link with

solana/core/src/ledger_cleanup_service.rs

Lines 23 to 34 in 36167b0

	// - To try and keep the RocksDB size under 400GB:
	// Seeing about 1600b/shred, using 2000b/shred for margin, so 200m shreds can be stored in 400gb.
	// at 5k shreds/slot at 50k tps, this is 40k slots (~4.4 hours).
	// At idle, 60 shreds/slot this is about 3.33m slots (~15 days)
	// This is chosen to allow enough time for
	// - A validator to download a snapshot from a peer and boot from it
	// - To make sure that if a validator needs to reboot from its own snapshot, it has enough slots locally
	// to catch back up to where it was when it stopped
	pub const DEFAULT_MAX_LEDGER_SHREDS: u64 = 200_000_000;
	// Allow down to 50m, or 3.5 days at idle, 1hr at 50k load, around ~100GB
	pub const DEFAULT_MIN_MAX_LEDGER_SHREDS: u64 = 50_000_000;

Fixes #23113

[steviez]

Thank you!