SONARJAVA-5955 Update rule S122's metadata (#5416)

Author: aurelien-coet-sonarsource

sonar-java-plugin/src/main/resources/org/sonar/l10n/java/rules/java/S122.html

@@ -1,12 +1,17 @@
 <h2>Why is this an issue?</h2>
 <p>Putting multiple statements on a single line lowers the code readability and makes debugging the code more complex.</p>
 <pre>
-if (someCondition) doSomething(); // Noncompliant
+if (someCondition) { doSomething(); } // Noncompliant
+
+doSomething(); doSomethingElse(); // Noncompliant
 </pre>
 <p>Write one statement per line to improve readability.</p>
 <pre>
 if (someCondition) {
   doSomething();
 }
+
+doSomething();
+doSomethingElse();
 </pre>