Added Course into javadoc

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

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

@@ -27,31 +27,61 @@ public class Course {
     public Course() {
     }
 
+    /**
+     * Course
+     * 
+     * @param name name given to the course
+     * @param symbol symbol given to the course
+     */
     public Course(String name, String symbol) {
         this.name = name;
         this.symbol = symbol;
     }
 
+    /**
+     * getId
+     * @return id
+     */
     public Long getId() {
         return this.id;
     }
 
+    /**
+     * getName
+     * @return name
+     */
     public String getName() {
         return name;
     }
 
+    /**
+     * getSymbol
+     * @return symbol
+     */
     public String getSymbol() {
         return symbol;
     }
 
+    /**
+     * setSymbol
+     * @param symbol set symbol in the course
+     */
     public void setSymbol(String symbol) {
         this.symbol = symbol;
     }
-
+   
+    /**
+     * setName
+     * @param name set name in the course
+     */
     public void setName(String name) {
         this.name = name;
     }
 
+    /**
+     * getGroups
+     * @return groups return list groups
+     */
     public List<Groups> getGroups() {
         return this.groups;
     }