Update readme

Signed-off-by: Paolo Di Tommaso <[email protected]>

.gitignore

@@ -4,4 +4,4 @@
 
 # Ignore Gradle build output directory
 build
-app/out/
+out/

README.md

@@ -8,7 +8,25 @@ The goal of this project is being able to track usage of off-heap memory and det
 The detection is made via a Java agent implemented by using [Byte Buddy](https://bytebuddy.net/) library.
 
 
-### Get started 
+### Get started
+
+1. Create the agent jar file using this command:
+
+    ```
+    ./gradlew jar
+    ```
+    `
+
+2. Launch the agent along with your Java application by adding these options
+to the Java command line:
+
+```
+  -javaagent:$PWD/build/libs/unsafe-tracker-<VERSION>.jar \
+  -Xbootclasspath/a:$PWD/build/libs/unsafe-tracker-<VERSION>.jar \`
+```
+
+
+### Development
 
 1. Compile the project using this command 
 
@@ -21,3 +39,8 @@ The detection is made via a Java agent implemented by using [Byte Buddy](https:/
     ```
     bash run.sh
     ```
+
+
+### Credits 
+
+Thanks to Rafael Winterhalter for advising about the use of the [Byte Buddy](https://github.com/raphw/byte-buddy).