update readme

README.rst

@@ -66,6 +66,9 @@ Changelog
 +----------------+------------+--------------------------------------------------------------------------------------------------------------------------------------+
 | Version        | Date       | Notes                                                                                                                                |
 +================+============+======================================================================================================================================+
+| Version 0.5.3  | 2020-10-07 |  Improvements in edge cases in spam-ldic and spam-ddic, thanks to a helper function called spam.helpers.slicePadded().               |
+|                |            |  New debug mode for spam-ddic as well as a graphical tool to manually align labels called spam-ereg-discrete                         |
++----------------+------------+--------------------------------------------------------------------------------------------------------------------------------------+
 | Version 0.5.2.1| 2020-07-20 |  This is the version in the JOSS paper. Making python 3.8 package for PyPI, along with classifiers. Python 2.7 dropped               |
 +----------------+------------+--------------------------------------------------------------------------------------------------------------------------------------+
 | Version 0.5.2  | 2020-06-03 |  Big improvements in spam-mmr and spam-mmr-graphical, all TSVs im1->im2 and gradients always computed in im2                         |