[MSHARED-1446] Add docs about repro build output timestamp boundaries

This closes #73

Author: michael-o

src/main/java/org/apache/maven/archiver/MavenArchiver.java

@@ -748,7 +748,9 @@ public Date configureReproducible(String outputTimestamp) {
  * contains only 1 character (not a number)
  * @since 3.6.0
  * @throws IllegalArgumentException if the outputTimestamp is neither ISO 8601 nor an integer, or it's not within
- * the valid range 1980-01-01T00:00:02Z to 2099-12-31T23:59:59Z
+ * the valid range 1980-01-01T00:00:02Z to 2099-12-31T23:59:59Z as defined by
+ * <a href="https://pkwaredownloads.blob.core.windows.net/pem/APPNOTE.txt">ZIP application note</a>,
+ * section 4.4.6.
  */
  public static Optional<Instant> parseBuildOutputTimestamp(String outputTimestamp) {
  // Fail-fast on nulls