tweak news formatting

NEWS.md

@@ -2,16 +2,16 @@
 
 ### Enhancements
 
-* Add `exclude` option to `subset_draws`, which can be used to exclude
+* Add `exclude` option to `subset_draws()`, which can be used to exclude
   the matched selection.
-* Add `are_log_weights` option to `pareto_smooth`, which is necessary
+* Add `are_log_weights` option to `pareto_smooth()`, which is necessary
   for correct Pareto smoothing computation if the input vector
   consists of log weights.
-* Add `pareto_smooth` option to `weight_draws`, to Pareto smooth
+* Add `pareto_smooth` option to `weight_draws()`, to Pareto smooth
   weights before adding to a draws object.
-* Add individual Pareto diagnostic functions (`pareto_khat`,
-  `pareto_khat_threshold`, `pareto_min_ss`, `pareto_convergence_rate`)
-* `thin_draws` now automatically thins draws based on ESS by default,
+* Add individual Pareto diagnostic functions (`pareto_khat()`,
+  `pareto_khat_threshold()`, `pareto_min_ss()`, `pareto_convergence_rate()`)
+* `thin_draws()` now automatically thins draws based on ESS by default,
   and non-integer thinning is possible.
 * Matrix multiplication of `rvar`s can now be done with the base matrix 
   multiplication operator (`%*%`) instead of `%**%` in R >= 4.3.