Update README.md

README.md

-# pow
+<!-- ABOUT THE PROJECT -->
+## Proof-of-Work Example Project
 
-Proof-of-Work Example Project
\ No newline at end of file
+Example project that helps to understand Proof of Work.
+
+<!-- GETTING STARTED -->
+## Getting Started
+
+Follow the steps below to setup up the project.
+
+### Prerequisites
+
+ - Java 8 — https://www.oracle.com/java/technologies/javase-jre8-downloads.html
+
+### Usage
+
+1. Open a console (e.g., Git bash) and build the Jar
+   ```shell
+   ./gradlew build
+   ```
+2. Start the application with Gradle
+   ```shell
+   ./gradlew run --args="-d=0.001"
+   ```
+3. Alternatively, you can also directly run the Jar
+   ```shell
+   java -jar build/libs/proof-of-work.jar -d=0.001
+   ```
+
+Try different values for `d` in order to scale the difficulty.