Make towncrier release note formatting more consistent with existing …

…release notes.

doc/changelog.rst

@@ -6,22 +6,19 @@ Change Log
 
 .. towncrier release notes start
 
-QuTiP 4.7.1 (2022-12-11)
-========================
+Version 4.7.1 (December 11, 2022)
++++++++++++++++++++++++++++++++++
 
 This is a bugfix release for QuTiP 4.7.X. In addition to the minor fixes
 listed below, the release adds builds for Python 3.11 and support for
 packaging 22.0.
 
 Features
 --------
-
 - Improve qutip import times by setting logger names explicitly. (#1980)
 
-
 Bug Fixes
 ---------
-
 - Change floquet_master_equation_rates(...) to use an adaptive number of time steps scaled by the number of sidebands, kmax. (#1961)
 - Change fidelity(A, B) to use the reduced fidelity formula for pure states which is more numerically efficient and accurate. (#1964)
 - Change `brmesolve` to raise an exception when ode integration is not successful. (#1965)
@@ -33,20 +30,16 @@ Bug Fixes
 - Add back .qu suffix to objects saved with qsave and loaded with qload. The suffix was accidentally removed in QuTiP 4.7.0. (#2038)
 - Add a default max_step to processors. (#2040)
 
-
 Documentation
 -------------
-
 - Add towncrier for managing the changelog. (#1927)
 - Update the version of numpy used to build documentation to 1.22.0. (#1940)
 - Clarify returned objects from bloch_redfield_tensor(). (#1950)
 - Update Floquet Markov solver docs. (#1958)
 - Update the roadmap and ideas to show completed work as of August 2022. (#1967)
 
-
 Miscellaneous
 -------------
-
 - Return TypeError instead of Exception for type error in sesolve argument. (#1924)
 - Add towncrier draft build of changelog to CI tests. (#1946)
 - Add Python 3.11 to builds. (#2041)