[Main] Clarify vague points in documentation (#620)

* Update getting-started.adoc

* Update logging.adoc

Author: Pante

docs/modules/ROOT/pages/includes/getting-started.adoc

@@ -51,7 +51,15 @@ To fine tune the configuration for each spec file, add the following entry to yo
 quarkus.openapi-generator.codegen.spec.petstore_json.additional-model-type-annotations=@org.test.Foo;@org.test.Bar
 ----
 
-If a base package name is not provided, it will be used the default `org.openapi.quarkus.<filename>`. For example, `org.openapi.quarkus.petstore_json`.
+If you want to change the base package in which the classes are generated, use the `quarkus.openapi-generator.codegen.spec.<filename>.base-package` property.
+If a base package is not provided, it will default to `org.openapi.quarkus.<filename>`. For example, `org.openapi.quarkus.petstore_json`.
+
+[source,properties]
+----
+quarkus.openapi-generator.codegen.spec.petstore_json.base-package=org.acme
+----
+
+
 
 Configuring `additional-model-type-annotations` will add all annotations to the generated model files (extra details can be found in https://openapi-generator.tech/docs/generators/java/#config-options[OpenApi Generator Doc]).
 
@@ -125,4 +133,4 @@ public class PetResource {
 }
 ----
 
-See the https://github.com/quarkiverse/quarkus-openapi-generator/tree/main/integration-tests[integration-tests] module for more information of how to use this extension. Please be advised that the extension is on experimental, early development stage.
+See the https://github.com/quarkiverse/quarkus-openapi-generator/tree/main/integration-tests[integration-tests] module for more information of how to use this extension. Please be advised that the extension is on experimental, early development stage.

docs/modules/ROOT/pages/includes/logging.adoc

@@ -5,4 +5,4 @@ Since the most part of this extension work is in the `generate-code` execution p
 mvn clean install -Dorg.slf4j.simpleLogger.log.org.openapitools=off
 ----
 
-For more information, see the https://maven.apache.org/maven-logging.html[Maven Logging Configuration] guide.
+For more information, see the https://maven.apache.org/maven-logging.html[Maven Logging Configuration] and https://maven.apache.org/configure.html[Maven Configuration] guides.