Fix the readme:

The script had an incorrect name.

Also, add a link to the installation instruction and make some
cosmetic changes.

(cherry picked from commit 62c4624)

Author: dmitry-timofeev

exonum-java-binding/cryptocurrency-demo/Readme.md

@@ -1,6 +1,6 @@
-# Cryptocurrency demo
+# Cryptocurrency Demo
 
-This project demonstrates how to bootstrap own cryptocurrency
+This project demonstrates how to bootstrap your own cryptocurrency
 with [Java binding Exonum blockchain](https://github.com/exonum/exonum).
 
 Exonum blockchain keeps balances of users and handles secure
@@ -11,33 +11,36 @@ It implements most basic operations:
 - Create a new user
 - Transfer funds between users
 
-## Install and run
+## Install and Run
 
 ### Manually
 
-#### Getting started
+#### Getting Started
 
 Be sure you installed necessary packages:
 - Linux or macOS. Windows support is coming soon.
 - [JDK 1.8+](http://jdk.java.net/12/).
 - [Maven 3.5+](https://maven.apache.org/download.cgi).
 - [git](https://git-scm.com/downloads)
 - [Node.js with npm](https://nodejs.org/en/download/)
-- You should have `Exonum Java App` installed and configured. The `exonum-java` binary should be available via the `PATH` environment variable.
+- [Exonum Java][ejb-installation] application.
 
-#### Install and run
+[ejb-installation]: https://exonum.com/doc/version/0.11/get-started/java-binding/#installation
 
-Build the project:
+#### Build and Run
+
+Build the service project:
 
 ```sh
 $ cd exonum-java-binding/cryptocurrency-demo
 
 $ mvn -P with-installed-app install 
-
-$ ./start_cryptocurrency_node.sh
 ```
 
-<!-- markdownlint-enable MD013 -->
+Run the service:
+```sh
+$ ./start-cryptocurrency-demo.sh
+```
 
 Install frontend dependencies:
 
@@ -53,7 +56,7 @@ Build sources:
 $ npm run build
 ```
 
-Run the application:
+Run the frontend application:
 
 ```sh
 $ npm start -- --port=6040 --api-root=http://127.0.0.1:6000 --explorer-root=http://127.0.0.1:3000