[master] Added missing Javadoc

Author: rcardin

src/main/kotlin/in/rcard/assertj/arrowcore/AbstractEitherAssert.kt

@@ -86,6 +86,9 @@ abstract class AbstractEitherAssert<
      * Verifies that the actual [Either] contains a right-sided value and gives this value to the given
      * consumer for further assertions. Should be used as a way of deeper asserting on the
      * containing object, as further requirement(s) for the value.
+     *
+     * @param requirement the consumer that will accept the right-sided value for deep asserting.
+     * @return this assertion object.
      */
     fun hasRightValueSatisfying(requirement: (RIGHT) -> Unit): SELF {
         assertIsRight()
@@ -116,6 +119,13 @@ abstract class AbstractEitherAssert<
         return myself
     }
 
+    /**
+     * Verifies that the actual left-sided [Either] contains a value that is an
+     * instance of the argument.
+     *
+     * @param expectedClass the expected class of the value inside the left-sided [Either].
+     * @return this assertion object.
+     */
     fun containsLeftInstanceOf(expectedClass: Class<*>): SELF {
         assertIsLeft()
         actual.onLeft { left ->
@@ -130,6 +140,9 @@ abstract class AbstractEitherAssert<
      * Verifies that the actual [Either] contains a left-sided value and gives this value to the given
      * consumer for further assertions. Should be used as a way of deeper asserting on the
      * containing object, as further requirement(s) for the value.
+     *
+     * @param requirement the consumer that will accept the left-sided value for deep asserting.
+     * @return this assertion object.
      */
     fun hasLeftValueSatisfying(requirement: (LEFT) -> Unit): SELF {
         assertIsLeft()