Pre-release version bump to 0.6.1 (#49)

* Bump version to `0.6.0`

* update version to 0.6.1

---------

Co-authored-by: ashishks0522 <[email protected]>
Co-authored-by: ashishks0522 <[email protected]>

Author: github-actions[bot]

.github/CHANGELOG.md

@@ -1,10 +1,18 @@
-## Release 0.6.0 (current release)
+## Release 0.6.1
 
 ### Improvements
 
 * Added a theme option to redirect searches to https://pennylane.ai/search.
   [(#47)](https://github.com/XanaduAI/xanadu-sphinx-theme/pull/47)
 
+### Contributors
+
+This release contains contributions from (in alphabetical order):
+
+[Mikhail Andrenkov](https://github.com/Mandrenkov).
+
+## Release 0.6.0
+
 ### Improvements
 
 * Pinned some implicit requirements in `doc/requirements.txt`.

xanadu_sphinx_theme/_version.py

@@ -3,4 +3,4 @@
 using the following format: <major>.<minor>.<patch>[-<pre-release>].
 """
 
-__version__ = "0.6.0"
+__version__ = "0.6.1"