Update index.md: fix link

Author: b-wagn

src/content/roadmap/danksharding/index.md

@@ -77,7 +77,7 @@ Data availability sampling is required for validators to quickly and efficiently
 
 ### Current progress {#current-progress}
 
-Full Danksharding is several years away. However, Proto-Danksharding should arrive relatively soon. At the time of writing (Feb 2023) the KZG ceremony is still open and has so far attracted over 50,000 contributors. The [EIP](https://eips.ethereum.org/EIPS/eip-4844) for Proto-Danksharding is mature, the specification is agreed and the clients have implemented prototypes that are currently being tested and made production-ready. The next step is to implement the changes on a public testnet. You can keep up to date using the [EIP 4844 readiness checklist](https://github.com/ethereum/pm/blob/master/Breakout-Room/4844-readiness-checklist.md#client-implementation-status).
+Full Danksharding is several years away. However, Proto-Danksharding should arrive relatively soon. At the time of writing (Feb 2023) the KZG ceremony is still open and has so far attracted over 50,000 contributors. The [EIP](https://eips.ethereum.org/EIPS/eip-4844) for Proto-Danksharding is mature, the specification is agreed and the clients have implemented prototypes that are currently being tested and made production-ready. The next step is to implement the changes on a public testnet. You can keep up to date using the [EIP 4844 readiness checklist](https://github.com/ethereum/pm/blob/master/Dencun/4844-readiness-checklist.md).
 
 ### Further reading {#further-reading}