Update documentation in order to reflect minimum JDK 17.

Author: Chessray

docs/src/docs/asciidoc/chapter-2-set-up.asciidoc

@@ -1,7 +1,7 @@
 [[setup]]
 == Set up
 
-MapStruct Spring Extensions is a Java annotation processor based on http://www.jcp.org/en/jsr/detail?id=269[JSR 269] and as such can be used within command line builds (javac, Ant, Maven etc.) as well as from within your IDE. The minimum JDK version is 11.
+MapStruct Spring Extensions is a Java annotation processor based on http://www.jcp.org/en/jsr/detail?id=269[JSR 269] and as such can be used within command line builds (javac, Ant, Maven etc.) as well as from within your IDE. The minimum JDK version is 17.
 
 IMPORTANT: Also, you will need MapStruct itself (at least version `1.4.0.Final`) in your project.
 
@@ -39,8 +39,8 @@ For Maven based projects add the following to your POM file in order to use MapS
             <artifactId>maven-compiler-plugin</artifactId>
             <version>3.8.1</version>
             <configuration>
-                <source>1.8</source>
-                <target>1.8</target>
+                <source>17</source>
+                <target>17</target>
                 <annotationProcessorPaths>
                     <path>
                         <groupId>org.mapstruct.extensions.spring</groupId>
@@ -226,7 +226,7 @@ Add the `javac` task configured as follows to your _build.xml_ file in order to
 <javac
     srcdir="src/main/java"
     destdir="target/classes"
-    classpath="path/to/mapstruct-spring-annotations{mapstructSpringExtensionsVersion}.jar">
+    classpath="path/to/mapstruct-spring-annotations-{mapstructSpringExtensionsVersion}.jar">
     <compilerarg line="-processorpath path/to/mapstruct-spring-extensions-{mapstructSpringExtensionsVersion}.jar"/>
     <compilerarg line="-s target/generated-sources"/>
 </javac>