Added ToC in README for easier access to read on Github

README.md

@@ -12,6 +12,56 @@ The book describes the Lightning Network (LN), a Peer-to-Peer protocol running o
 
 The book is suitable for technical readers with an understanding of the fundamentals of Bitcoin and other open blockchains.
 
+## Contents
+
+### Preface
+
+*  [Cover](cover.html)
+*  [Titlepage](titlepage.html)
+*  [Copyright](copyright.html)
+*  [Table of Contents](toc.html)
+*  [Preface](preface.asciidoc)
+
+### Part 1
+
+*  [Part 1 - Intro](part_1_divider.asciidoc)
+*  [Introduction](01_introduction.asciidoc)
+*  [Getting Started](02_getting_started.asciidoc)
+*  [How the Lightning Network Works](03_how_ln_works.asciidoc)
+*  [Lightning Node Software](04_node_client.asciidoc)
+*  [Operating a Lightning Network Node](05_node_operations.asciidoc)
+
+### Part 2
+
+*  [Part 2 - Intro](part_2_divider.asciidoc)
+*  [Lightning Network Architecture](06_lightning_architecture.asciidoc)
+*  [Payment Channels](07_payment_channels.asciidoc)
+*  [Routing on a Network of Payment Channels](08_routing_htlcs.asciidoc)
+*  [Channel Operation and Payment Forwarding](09_channel_operation.asciidoc)
+*  [Onion Routing](10_onion_routing.asciidoc)
+*  [Gossip and the Channel Graph](11_gossip_channel_graph.asciidoc)
+*  [Pathfinding and Payment Delivery](12_path_finding.asciidoc)
+*  [Wire Protocol: Framing and Extensibility](13_wire_protocol.asciidoc)
+*  [Lightning's Encrypted Message Transport](14_encrypted_transport.asciidoc)
+*  [Lightning Payment Requests](15_payment_requests.asciidoc)
+*  [Security and Privacy of the Lightning Network](16_security_privacy_ln.asciidoc)
+*  [Conclusion](17_conclusion.asciidoc)
+
+### Appendices
+
+*  [Bitcoin Fundamentals Review](appendix_bitcoin_fundamentals_review.asciidoc)
+*  [Docker Basics](appendix_docker_basics.asciidoc)
+*  [Protocol Messages](appendix_protocol_messages.asciidoc)
+
+### Glossary
+
+*  [Glossary](glossary.asciidoc)
+
+### Author Bios and Colophon
+
+*  [Author Bios](author_bio.html)
+*  [Colophon](colo.html)
+
 ## Source and license
 
 Mastering the Lightning Network is released under the Creative Commons CC-BY-NC-ND license, which allows sharing the source code for personal use only. You may read this book for free. You may not create derivatives (such as PDF copies), or distribute the book commercially. The full terms of the license can be found here: