Fix typo

README.md

@@ -44,6 +44,10 @@ Possible error codes:
 
 ## Changelog
 
+### 2.0.1 (July 14, 2024)
+
+Fixed internal typo.
+
 ### 2.0.0 (July 14, 2024)
 
 __BREAKING:__ Replace internal string checking implementation with a faster one; the new implementation will not recognize String objects from another realm (but will still work fine with regular, non-object strings).

is-string.js

@@ -14,5 +14,5 @@ module.exports = function isString(value) {
 	if (typeof value !== 'object') {
 		return false;
 	}
-	return hasToStringTag ? string instanceof String : toStr.call(value) === strClass;
+	return hasToStringTag ? value instanceof String : toStr.call(value) === strClass;
 };