add NEWS

Author: edzer

NEWS.md

@@ -1,9 +1,14 @@
 # s2 (development version)
 
+* `s2_buffer_cells()` recycles `max_dist` and `min_level` arguments, allowing
+   to specify these by feature; #264 and https://github.com/r-spatial/sf/issues/2488
+
 * The Abseil dependency is resolved using pkg-config where possible.
   Where this is not possible, a vendored version of Abseil will be built using
   CMake (#258).
 
+# s2 1.1.7
+
 # s2 1.1.6
 
 * Fix CRAN warning (#254).