review club: more specific link to earlier newsletter

for Bitcoin Inquisition, rather than linking to the entire newsletter

_posts/en/newsletters/2023-03-08-newsletter.md

@@ -107,7 +107,7 @@ question below to see a summary of the answer from the meeting.*
 [bitcoin-inquisition: Activation logic for testing consensus changes][review club bi-16]
 is a PR by Anthony Towns that improves activation and deactivation
 logic for the [Bitcoin Inquisition][] project, which runs on [signet][topic signet].
-This project was covered in [newsletter #219][].
+This project was covered in [newsletter #219 bi][].
 
 While most of the [Bitcoin Inquisition PRs][bi prs] implement specific consensus or
 relay policy changes, this PR modifies the Bitcoin Inquisition framework itself.
@@ -202,7 +202,7 @@ Proposals (BIPs)][bips repo], and [Lightning BOLTs][bolts repo].*
 [sanders vault]: https://lists.linuxfoundation.org/pipermail/bitcoin-dev/2023-March/021510.html
 [news234 vault]: /en/newsletters/2023/01/18/#proposal-for-new-vault-specific-opcodes
 [news166 tluv]: /en/newsletters/2021/09/15/#covenant-opcode-proposal
-[newsletter #219]: /en/newsletters/2022/09/28/
+[newsletter #219 bi]: /en/newsletters/2022/09/28/#bitcoin-implementation-designed-for-testing-soft-forks-on-signet
 [review club bi-16]: https://bitcoincore.reviews/bitcoin-inquisition-16
 [bitcoin inquisition]: https://github.com/bitcoin-inquisition/bitcoin
 [bi prs]: https://github.com/bitcoin-inquisition/bitcoin/pulls?q=is%3Apr