add release date - update docs

Author: ilanschnell

CHANGE_LOG

@@ -1,4 +1,4 @@
-2025-XX-XX   3.6.0:
+2025-07-29   3.6.0:
 -------------------
   * add `util.random_k()`, see #237
   * add `util.sum_indices()`
@@ -79,7 +79,7 @@
   * simplify `util.int2ba()`
   * add tests
   * add [masked indexing example](../examples/masked.py)
-  * add [tricks example](../examples/tricks.py)
+  * add [tricks example](../devel/tricks.py)
 
 
 2025-04-04   3.3.1:

doc/changelog.rst

@@ -1,7 +1,7 @@
 Change log
 ==========
 
-2025-XX-XX   3.6.0:
+**3.6.0** (2025-07-29):
 
 * add ``util.random_k()``, see `#237 <https://github.com/ilanschnell/bitarray/issues/237>`__
 * add ``util.sum_indices()``
@@ -82,7 +82,7 @@ Change log
 * simplify ``util.int2ba()``
 * add tests
 * add `masked indexing example <../examples/masked.py>`__
-* add `tricks example <../examples/tricks.py>`__
+* add `tricks example <../devel/tricks.py>`__
 
 
 **3.3.1** (2025-04-04):