DOC: Small fixes for docs

Author: bashtage

doc/source/change-log.rst

@@ -9,14 +9,14 @@ v2.1.0
   not being correctly set when initialized without a user-provided ``inc``.
 - Added the :class:`~randomgen.tyche.Tyche` PRNG of Neves and Araujo. Supports
   two variants. One is the original implementation in the 2012 paper. The
-  second matches the version in ``OpenRand``.
+  second implementation matches the version in ``OpenRand``.
 - Added the :class:`~randomgen.squares.Squares` PRNG of Widynski. Supports
   two variants. The default uses 5 rounds of the middle square algorithm and outputs
-  a 64-bit value. If ``variant=32``, then 4 rounds are sued but only 32 bits
+  a 64-bit value. If ``variant=32``, then 4 rounds are used but only 32 bits
   returned.
 - Added the helper function :func:`~randomgen.squares.generate_keys` for
   :class:`~randomgen.squares.Squares`. This function can be used to pre-generate
-  keys for used with :class:`~randomgen.squares.Squares`.
+  keys for use with :class:`~randomgen.squares.Squares`.
 - Refactored the broadcasting helper functions out of ``randomgen.common``
   to ``randomgen.broadcast``. Tests have been added and some edge case bugs
   have been found and fixed.