update readme

Author: baileympearson

README.md

@@ -90,7 +90,7 @@ Only suitable for local development:
 Below are the platforms that are available as prebuilds on each github release.
 `prebuild-install` downloads these automatically depending on the platform you are running npm install on.
 
-- Linux GLIBC 2.23 or later
+- Linux GLIBC 2.28 or later
     - s390x
     - arm64
     - x64