Update README.md

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

Author: fengmk2

README.md

@@ -40,7 +40,7 @@ npm install lzma-native
 
 ### Compress a single file
 
-Use gzip as an example, tar, tgz, zip and xz is same as gzip.
+Use gzip as an example; tar, tgz, zip, and xz are the same as gzip.
 
 __promise style__