Added CommisionService into javadoc

Signed-off-by: Marcin Woźniak <y0rune@aol.com>

buisnesslogic/src/main/java/com/plannaplan/services/CommisionService.java

@@ -22,20 +22,38 @@ public class CommisionService {
     public CommisionService() {
     }
 
+    /*
+     * save
+     *
+     * @param commision which assignment should be save in service
+     * @return commision
+     */
     public Commision save(Commision commision) {
         this.repo.save(commision);
         return commision;
 
     }
 
+    /*
+     * getUsersCommisions
+     * Return given users id
+     */
     public List<Commision> getUsersCommisions(User user) {
         return this.repo.getUsers(user.getId());
     }
 
+    /*
+     * getNewestCommision
+     * Return the newest commision of the user
+     */
     public Optional<Commision> getNewestCommision(User user) {
         return this.repo.getNewestCommision(user.getId()).stream().findFirst();
     }
 
+    /*
+     * getCommisionsAmmount
+     * Return ammount of commisions
+     */
     public long getCommisionsAmmount() {
         return this.repo.count();
     }