Add release note

Author: oscarbenjamin

README.md

@@ -164,10 +164,14 @@ Next release (0.8.0)...
 
 Contributors
 
+- Oscar Benjamin (OB)
 - Robert Dougherty-Bliss (RDB)
 
 Changes
 
+- [gh-289](https://github.com/flintlib/python-flint/pull/289),
+  Add `.prec` attribute to series types `fmpz_series`, `fmpq_series`,
+  `arb_series` and `acb_series`. (OB)
 - [gh-274](https://github.com/flintlib/python-flint/pull/274),
   Add resultant methods to `fmpz_poly`, `fmpq_poly` and
   `nmod_poly`. Now all univariate and polynomial types have the

src/flint/types/fmpz_series.pyx

@@ -77,7 +77,6 @@ cdef class fmpz_series(flint_series):
                 fmpz_poly_set_list(self.val, [val])
         fmpz_poly_truncate(self.val, max(0, self._prec))
 
-
     @property
     def prec(self):
         """