Update README.md

Author: klauspost

README.md

@@ -15,6 +15,7 @@ This package provides various compression algorithms.
 
 # changelog
 
+* Mar 10, 2020: s2: Fix pure Go block encoder. [#244](https://github.com/klauspost/compress/pull/244)
 * Mar 9, 2020: zstd: Added "better compression" mode. [#240](https://github.com/klauspost/compress/pull/240)
 * Mar 9, 2020: zstd: Improve speed of fastest compression mode by 5-10% [#241](https://github.com/klauspost/compress/pull/241)
 * Feb 27, 2020: (v1.10.2) Close to 50% speedup in inflate (gzip/zip decompression). [#236](https://github.com/klauspost/compress/pull/236) [#234](https://github.com/klauspost/compress/pull/234) [#232](https://github.com/klauspost/compress/pull/232)