Release v0.3

Author: lee30sonia

docs/changelog.rst

@@ -1,9 +1,13 @@
 Change Log
 ==========
 
-v0.3 (not yet released)
+v0.4 (not yet released)
 -----------------------
 
+
+v0.3 (July 12, 2022)
+--------------------
+
 * I/O:
     - Read GENLIB files using *lorina* (`genlib_reader`) `#421 <https://github.com/lsils/mockturtle/pull/421>`_
     - Read SUPER files using *lorina* (`super_reader`) `#489 <https://github.com/lsils/mockturtle/pull/489>`_