Add more comments to the public methods.

src/main/java/org/paukov/combinatorics3/Generator.java

@@ -15,28 +15,64 @@
  */
 public class Generator {
 
+  /**
+   * Creates a combination generator for a given set of arguments.
+   * @param args A list of arguments (elements) for the generator.
+   * @param <T> A type of the arguments.
+   * @return An instance of the CombinationGenerator with the provided elements.
+   */
   @SafeVarargs
   public static <T> CombinationGenerator<T> combination(T... args) {
     return new CombinationGenerator<>(asList(args));
   }
 
+  /**
+   * Creates a combination generator for a given set of arguments.
+   * @param collection A collection of the elements for the generator.
+   * @param <T> A type of the elements.
+   * @return An instance of the CombinationGenerator with the provided elements.
+   */
   public static <T> CombinationGenerator<T> combination(Collection<T> collection) {
     return new CombinationGenerator<>(collection);
   }
 
+  /**
+   * Creates a permutation generator for a given set of arguments.
+   * @param args A list of arguments (elements) for the generator.
+   * @param <T> A type of the arguments.
+   * @return An instance of the PermutationGenerator with the provided elements.
+   */
   @SafeVarargs
   public static <T> PermutationGenerator<T> permutation(T... args) {
     return new PermutationGenerator<>(asList(args));
   }
 
+  /**
+   * Creates a permutation generator for a given collection of the elements.
+   * @param collection A collection of the elements for the generator.
+   * @param <T> A type of the elements.
+   * @return An instance of the PermutationGenerator with the provided elements.
+   */
   public static <T> PermutationGenerator<T> permutation(Collection<T> collection) {
     return new PermutationGenerator<>(collection);
   }
 
+  /**
+   * Creates a subset generator for a given collection of the elements.
+   * @param collection A collection of the elements for the generator.
+   * @param <T> A type of the elements.
+   * @return An instance of the generator that produces subsets of the elements.
+   */
   public static <T> SubSetGenerator<T> subset(Collection<T> collection) {
     return new SubSetGenerator<>(collection);
   }
 
+  /**
+   * Creates a subset generator for a given list of the arguments.
+   * @param args A list of the arguments for the generator.
+   * @param <T> A type of the elements.
+   * @return An instance of the generator that produces subsets of the elements.
+   */
   @SafeVarargs
   public static <T> SubSetGenerator<T> subset(T... args) {
     return new SubSetGenerator<>(asList(args));

src/main/java/org/paukov/combinatorics3/SubSetGenerator.java

@@ -9,7 +9,7 @@
 
 /**
  * A generator for iterating over the subsets.
- * @param <T> Type of the elements in the sebsets.
+ * @param <T> Type of the elements in the subsets.
  */
 public class SubSetGenerator<T> {