fixed yet more headers

Author: brunjlar

chapters/chapter-00-preface.adoc

@@ -75,18 +75,18 @@ Learn the foundational blockchain concepts, then discover how to interact with t
 Begin by understanding the core components of the Cardano network, delve into how consensus is reached and incentives work, and then focus on the specifics of setting up and operating a stake pool.
 
 ===== Suggested chapters & sections:
-- Preface: How to Navigate, How to Contribute
-- Chapter 4: How Cardano Works: Overview of Cardano Network Protocols, Reaching Consensus using proof of stake, About the Ouroboros Protocol, Incentives in Cardano, Cardano Node and system layers (Introduction to the Cardano node, Cardano Node Layers), Components of the Cardano Ecosystem (Node, CLI, Db sync)
-- Chapter 6: Wallets in the Cardano Ecosystem: Fundamentals of Wallets (Public and private keys: What they are and how they work), Common operations in a Cardano Wallet (Staking ada: How it works and its benefits)
-- Chapter 7: Stake Pools and Stake Pool Operations: Introduction, What is a Stake Pool?, SPO Requirements, Leadership Selection, Slot Conflict, Cardano CLI, Node Operations
+- Preface: How to navigate, How to contribute
+- Chapter 4: How Cardano works: Overview of Cardano network protocols, Reaching consensus using proof of stake, About the Ouroboros protocol, Incentives in Cardano, Cardano node and system layers (Introduction to the Cardano node, Cardano node layers), Components of the Cardano ecosystem (Node, CLI, Db sync)
+- Chapter 6: Wallets in the Cardano ecosystem: Fundamentals of wallets (Public and private keys: What they are and how they work), Common operations in a Cardano wallet (Staking ada: How it works and its benefits)
+- Chapter 7: Stake pools and stake pool operations: Introduction, What is a stake pool?, SPO requirements, Leadership selection, Slot conflict, Cardano CLI, Node operations
 
 ==== Cardano governance & future path
 Understand how Cardano's governance model operates, explore key initiatives like Project Catalyst and CIPs, and look ahead to future advancements and the Cardano 2.0 vision.
 
 ===== Suggested chapters & sections:
-- Preface: How to Navigate, How to Contribute
+- Preface: How to navigate, How to contribute
 - Chapter 5: Governance
-- Chapter 10: Looking Forward: Mithril, Hydra
+- Chapter 10: Looking forward: Mithril, Hydra
 
 === Join the community: cntribute to Mastering Cardano
 _Mastering Cardano_ is more than just a book; it's intended to be a community-driven resource that grows and improves with the collective knowledge of the Cardano ecosystem. The world of blockchain is dynamic, and we believe the best way to keep this resource current, accurate, and truly comprehensive is through your valuable contributions.

chapters/chapter-03-learn-about-cardano.adoc

@@ -1,6 +1,6 @@
 :imagesdir: ../images
 
-== Learn About Cardano
+== Learn about Cardano
 
 === What is Cardano?
 Cardano is a _third-generation_, _open-source_, _proof-of-stake_ blockchain platform designed to provide a secure, scalable, and interoperable infrastructure for developing smart contracts(((smart contract))) and decentralized applications (DApps). Its primary goal is to address the limitations of earlier blockchain platforms by prioritizing these core tenets. As a fully https://informatics.ed.ac.uk/blockchain/edi[decentralized] network, Cardano supports a diverse range of applications, from financial services to supply chain management. Recent advancements, including the https://iohk.io/en/blog/posts/2024/08/30/chang-upgrade-a-big-step-in-changing-the-world-with-cardano/[Chang] and https://www.intersectmbo.org/news/plomin-hard-fork-ratified[Plomin] hard forks(((hard fork))), have further enhanced its decentralization, establishing it as a leading decentralized blockchain.
@@ -211,7 +211,7 @@ The https://developers.cardano.org/docs/portal-contribute/[Builder Tools] sectio
 
 The documentation in the portal can always be improved, and users are encouraged to contribute by creating and enhancing tutorials. Reviewing pull requests is another way to contribute, requiring technical understanding and prior contributions. The FAQs cover topics such as the pull request review process, becoming a reviewer, getting added to the contributor list, and connecting with the developer community through Discord and the forum.
 
-=== Suggested Reading
+=== Suggested reading
 - https://docs.cardano.org/introduction/[Cardano Docs]
 - https://www.youtube.com/channel/UCX9j__vYOJu00iqBrCzecVw[IO Academy]
 - https://www.essentialcardano.io/[Essential Cardano(((Essential Cardano)))]