Update README.

Author: cknitt

CHANGELOG.md

@@ -4,7 +4,7 @@
 
 - Updated ReScript parser version to 241fefd (ReScript 10.0.1).
 - Removed Reason support.
-- Unescape extracted strings to fix issue with duplicate newlines.
+- Unescape extracted strings to fix issue with duplicate backslash (`\\n` vs. `\n`).
 - Build with OCaml 4.14.0.
 - Perform Linux build on ubuntu-20.04 as ubuntu-18.04 is deprecated.