[doc] Update the README

Signed-off-by: Pierre-Charles David <[email protected]>

README.adoc

@@ -1,31 +1,22 @@
 = Eclipse Sirius EMF JSON
 
-This project is part of http://www.eclipse.org/sirius[Eclipse Sirius].
+This project is part of https://eclipse.dev/sirius[Eclipse Sirius].
 It provides a JSON-based implementation of EMF resources which can be used as a drop-in replacement for the default XMI-based format.
 
 Although it is part of Sirius, this new EMF resource type can actually be used by any EMF-based application as it does not depend on the rest of the Sirius platform (neither Sirius Desktop nor Sirius Web).
 
 == Building
 
-The build uses https://maven.apache.org/[Apache Maven] (version 3.6.3) and http://www.eclipse.org/tycho/[Tycho]. To launch a complete build, issue:
+The build uses https://maven.apache.org/[Apache Maven] (version 3.9.8). To launch a complete build, issue:
 
 [source,sh]
 ----
-mvn clean package -f releng/org.eclipse.sirius.emfjson.releng/pom.xml
+mvn -f org.eclipse.sirius.emfjson/pom.xml clean package
 ----
 
 from the top-level directory.
 
-WARNING: Note that you will need to use **Java 11** to run the build. Java 12 and later are currently not supported.
-
-If you are behind a proxy, you may get Maven errors about `checkstyle.org` not being available. In this case you need to explicitly disable CheckStyle from the build:
-
-[source,sh]
-----
-mvn clean package -f releng/org.eclipse.sirius.emfjson.releng/pom.xml -P\!checkstyle
-----
-
-The resulting update-site (p2 repository) can be found in `repositories/org.eclipse.sirius.emfjson.repository/target/repository`.
+WARNING: Note that you will need to use **Java 17** or later to run the build.
 
 == Usage
 
@@ -37,9 +28,8 @@ For example:
 Resource.Factory.Registry.INSTANCE.getExtensionToFactoryMap().put("json", new JsonResourceFactoryImpl());
 ----
 
-If you are running in the context of the Eclipse Platform, the `org.eclipse.sirius.emfjson.ide` plug-in does this automatically and also registers the corresponding `Content-Type`.
+See https://github.com/eclipse-sirius/sirius-web/tree/master/packages/emf/backend/sirius-components-emf[the Sirius Web sources] for concrete usage examples.
 
-See the `org.eclipse.sirius.emfjson.resource.JsonResource` for various options that can be used to control the serialisation/deserialisation process (e.g. whether to pretty-print the JSON).
 
 == License