fix(docs): book link (#602)

README.md

@@ -4,16 +4,14 @@ Welcome to the Polka Storage project repo!
 
 This project aims to build a native storage network for Polkadot.
 
-Check out the book at <https://eigerco.github.io/polka-storage/getting-started/index.html>.
-
+Check out the book at <https://eigerco.github.io/polka-storage-book>.
 
 - If you'd like to contribute, take a look at [`DEVELOPMENT.md`](./DEVELOPMENT.md) to get started.
 
 - Weekly dev updates https://forum.polkadot.network/t/polkadot-native-storage-updates/7021
 
-
 ## About Eiger
 
 We are engineers. We contribute to various ecosystems. On Polkadot [we integrated Move to Substrate](https://x.com/Polkadot/status/1816109501394637034) allowing builders to integrate the Move VM and execute Move smart contracts. We are building Polkadot Storage (this project) and building our Jam client [Strawberry](https://github.com/eigerco/strawberry) the first serious project to go on [review](https://github.com/w3f/jam-milestone-delivery/pull/6) for reaching Milestone 1.
 
-Contact us at [email protected]
+Contact us at [email protected]