chore: release 0.13.1

CHANGELOG.md

@@ -11,14 +11,19 @@ and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0
 
 ### Changed
 
+* Unpin igraph dependency to allow for newer versions of igraph to be used.
+* Cleanup README and point to the external documentation site.
+* Change PyPi package name to pixelgen-pixelator.
+
 ### Fixed
 
 * Fix an issue where `--keep-workdirs` option for pytest was not available when running pytest without
   restricting the testdir to `tests/integration`.
+* Fix an issue where pixelator --version would return 0.0.0.
 
 ### Removed
 
 
 ## [0.13.0] - 2023-09-13
 
-* First public release of pixelator
+* First public release of pixelator.