Update README.md
added link back to article: Generating a Java String of N Repeated Characters
@@ -4,6 +4,7 @@ This module contains articles about string-related algorithms.
### Relevant Articles:
+- [Generating a Java String of N Repeated Characters](https://www.baeldung.com/java-string-of-repeated-characters)
- [Check if Two Strings are Anagrams in Java](https://www.baeldung.com/java-strings-anagrams)
- [Email Validation in Java](https://www.baeldung.com/java-email-validation-regex)
- [Check if the First Letter of a String is Uppercase](https://www.baeldung.com/java-check-first-letter-uppercase)
