fix: Fix README: add Maven dependency info

README.md

@@ -26,3 +26,41 @@ Duniter4j is a Java Toolkit for [Duniter](http://duniter.org).
 - `duniter4j-core-shared`: A set of useful classes, used by other modules.
 - `duniter4j-core-client`: [a Java API](./src/site/markdown/Java_API.md) to help Java developers to communicate with a Duniter network.
 - `duniter4j-client`: [a command line tool](./src/site/markdown/CLI.md), to execute basic operation on a Duniter currency: transfer, view peers, ...
+
+
+## Build from sources
+
+- Install Apache Maven (3.1.1+) 
+- Run the build command:
+```bash
+mvn install
+```
+
+## Use as Maven dependency
+
+```xml
+
+<dependencies>
+  <!-- Duniter4j dependency -->
+  <dependency>
+    <groupId>org.duniter</groupId>
+    <artifactId>duniter4j-core-client</artifactId>
+    <version>x.y.z</version> <!-- -->
+  </dependency>
+</dependencies>
+
+<!-- Duniter4j repository -->
+<repositories>
+    <repository>
+      <id>duniter4j-public-group</id>
+      <url>https://nexus.e-is.pro/nexus/content/groups/duniter4j</url>
+    </repository>
+</repositories>
+```
+
+
+## Create a new release
+
+```bash
+./release.sh
+```
\ No newline at end of file

release.sh

@@ -28,6 +28,17 @@ if [[ $? -ne 0 ]]; then
 fi
 echo "Prepare release [OK]"
 
+
+echo "**********************************"
+echo "* Performing release..."
+echo "**********************************"
+mvn release:perform --quiet -Darguments="${RELEASE_OPTS}"
+if [[ $? -ne 0 ]]; then
+    exit 1
+fi
+echo "Perform release [OK]"
+
+
 echo "**********************************"
 echo "* Compiling sources..."
 echo "**********************************"