Added fj-doc-maven-plugin init goal docs

Author: fugerit79

src/docs/wizard/fj-doc-maven-plugin_init.md

@@ -12,4 +12,43 @@ mvn org.fugerit.java:fj-doc-maven-plugin:init \
 
 A new folder `$artifactId` folder will be created, containing the maven project configured for using Venus.
 
-For additional options see [documentation](https://github.com/fugerit-org/fj-doc/blob/main/fj-doc-maven-plugin/README.md#goal--init).
+For additional options see [documentation](https://github.com/fugerit-org/fj-doc/blob/main/fj-doc-maven-plugin/README.md#goal--init).
+
+## Some use cases
+
+### Select the needed Venus Extensions
+
+For instance, if PDF, CSV and XLSX output are needed : 
+
+`-Dextensions=base,freemarker,mod-fop,mod-csv,mod-poi`
+
+Here is the complete command : 
+
+```shell
+mvn org.fugerit.java:fj-doc-maven-plugin:init \
+-DgroupId=org.example.doc \
+-DartifactId=fugerit-demo \
+-Dextensions=base,freemarker,mod-fop,mod-opencsv,mod-poi
+```
+
+### Flavoured project
+
+With the 'flavour' parameter, it is possible to create specific project type (among the supported ones).
+
+I.e. to create a quarkus 3 project : 
+
+`-Dflavour=quarkus-3`
+
+Here is the full command : 
+
+```shell
+mvn org.fugerit.java:fj-doc-maven-plugin:init \
+-DgroupId=org.example.doc \
+-DartifactId=fugerit-demo-quarkus-3 \
+-Dflavour=quarkus-3 \
+-Dextensions=base,freemarker,mod-fop,mod-opencsv,mod-poi
+```
+
+See [fj-doc-maven-plugin init goal documentation for further info](https://github.com/fugerit-org/fj-doc/blob/main/fj-doc-maven-plugin/README.md#init-fugerit-venus-parameters)
+
+