UPdated Mermaid version to 8.12.0

docs/README.md

@@ -9,10 +9,14 @@ It is a Javascript based diagramming and charting tool that renders Markdown-ins
 
 ![banner](img/header.png)
 
-**Edit this Page** [![N|Solid](img/GitHub-Mark-32px.png)](https://github.com/mermaid-js/mermaid/blob/develop/docs/README.md)
+<!-- **Edit this Page** [![N|Solid](img/GitHub-Mark-32px.png)](https://github.com/mermaid-js/mermaid/blob/develop/docs/README.md) -->
 
 [![Build Status](https://travis-ci.org/mermaid-js/mermaid.svg?branch=master)](https://travis-ci.org/mermaid-js/mermaid) [![NPM](https://img.shields.io/npm/v/mermaid)](https://www.npmjs.com/package/mermaid) [![Coverage Status](https://coveralls.io/repos/github/mermaid-js/mermaid/badge.svg?branch=master)](https://coveralls.io/github/mermaid-js/mermaid?branch=master) [![Join our Slack!](https://img.shields.io/static/v1?message=join%20chat&color=9cf&logo=slack&label=slack)](https://join.slack.com/t/mermaid-talk/shared_invite/enQtNzc4NDIyNzk4OTAyLWVhYjQxOTI2OTg4YmE1ZmJkY2Y4MTU3ODliYmIwOTY3NDJlYjA0YjIyZTdkMDMyZTUwOGI0NjEzYmEwODcwOTE) [![This project is using Percy.io for visual regression testing.](https://percy.io/static/images/percy-badge.svg)](https://percy.io/Mermaid/mermaid)
 
+<!-- Mermaidn book banner -->
+[![banner](img/book-banner-pre-release.jpg)](https://mermaid-js.github.io/mermaid/landing/)
+
+
 <!-- <Main description> -->
 The main purpose of Mermaid is to help with Visualizing Documentation, and helping it catch up with Development.
 > Documentation-Rot is a Catch-22 that Mermaid helps to solve.

docs/index.html

@@ -7,7 +7,7 @@
   <meta name="description" content="Markdownish syntax for generating flowcharts, sequence diagrams, class diagrams, gantt charts and git graphs.">
   <meta name="viewport" content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
   <!-- <link rel="stylesheet" href="//unpkg.com/docsify/lib/themes/vue.css"> -->
-  <link rel="stylesheet" href="theme.css">  <script src="//cdn.jsdelivr.net/npm/mermaid@8.11.4/dist/mermaid.min.js"></script>
+  <link rel="stylesheet" href="theme.css">  <script src="//cdn.jsdelivr.net/npm/mermaid@8.12.0/dist/mermaid.min.js"></script>
   <!-- <script src="http://localhost:9000/mermaid.js"></script> -->
   <script>
     (function(i,s,o,g,r,a,m){i['GoogleAnalyticsObject']=r;i[r]=i[r]||function(){