chore: fix docs (#362)

# What ❔

- fix docs

## Why ❔

<img width="436" alt="image"
src="https://github.com/matter-labs/zksync-era/assets/148772726/a9453da9-087e-4261-9d49-47530d774aa3">

## Checklist

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- [x] PR title corresponds to the body of PR (we generate changelog
entries from PRs).
- [x] Tests for the changes have been added / updated.
- [x] Documentation comments have been added / updated.
- [x] Code has been formatted via `zk fmt` and `zk lint`.

docs/advanced/contracts.md

@@ -42,7 +42,8 @@ cheaper modifications and increased flexibility.
 Small note on system contracts: as mentioned above, we moved some of the VM logic into system contracts, which allows us
 to keep VM simpler (and with this - keep the proving system simpler).
 
-You can see the full list (and codes) of the system contracts here: <https://github.com/matter-labs/system-contracts>.
+You can see the full list (and codes) of the system contracts here:
+<https://github.com/matter-labs/era-system-contracts>.
 
 While some of them are not really visible to the contract developer (like the fact that we're running a special
 `Bootleader` to package a bunch of transactions together - more info in a future article) - some others are very