oops typo

NEWS.md

@@ -1,6 +1,6 @@
 # srvyr (development version)
 * `as_survey_rep()` now has an argument `degf`, corresponding to the same argument in the survey function `svrepdesign()`. This argument can be useful for large data sets, since specifying a value for `degf` avoids a calculation which can be slow for very large data sets, (#171, @bschneidr).
-* Speed improvmeents for summarize when there are many groups (#168, thanks @etiennebacher)
+* Speed improvements for summarize when there are many groups (#168, thanks @etiennebacher)
 * Improvements to printing (#166, thanks @szimmer)
 * Fix for situations where filtering a calibrated/PPS survey design when filtering 0 rows (#159, @bschneidr)
 * Fix for anonymous functions in `rename_with()` (#172, thanks @josiahg2)