Fixing an invalid documentation link that was causing a 404 Not Found…

… error

PiperOrigin-RevId: 378875719
(cherry picked from commit 5a2ab68)

examples/java_src/gcs/GcsEnvelopeAeadExample.java

@@ -124,7 +124,7 @@ public static void main(String[] args) throws Exception {
       String gcsBlobPath = args[5];
       // This will bind the encryption to the location of the GCS blob. That if, if you rename or
       // move the blob to a different bucket, decryption will fail.
-      // See https://developers.google.com/tink/AEAD#associated_data.
+      // See https://developers.google.com/tink/aead#associated_data.
       byte[] associatedData = gcsBlobPath.getBytes(UTF_8);
       byte[] ciphertext = aead.encrypt(input, associatedData);