Added docs into branch

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

buisnesslogic/src/main/java/com/plannaplan/entities/Assignment.java

@@ -7,6 +7,10 @@ import javax.persistence.Id;
 import javax.persistence.JoinColumn;
 import javax.persistence.ManyToOne;
 
+/**
+ *  Entity of Assignment grouping of state associated about group_id and commision_id
+ */
+
 @Entity
 public class Assignment {
     @Id