Updated README.md

Author: lokeshgupta1981

src/main/java/com/howtodoinjava/core/basic/README.md

@@ -9,4 +9,5 @@
 7. [Java While Loop](https://howtodoinjava.com/java/basics/while-loop-in-java/)
 8. [Java String substring()](https://howtodoinjava.com/java/string/java-string-substring-example/)
 9. [Printf-Style Output Formatting in Java](https://howtodoinjava.com/java/basics/printf-style-output-formatting/)
-10. [Java – Round Off Double or Float Values to 2 Decimal Places](https://howtodoinjava.com/java/basics/round-off-n-decimal-places/)
+10. [Java – Round Off Double or Float Values to 2 Decimal Places](https://howtodoinjava.com/java/basics/round-off-n-decimal-places/)
+11. [Builder Pattern for Java Records](https://howtodoinjava.com/java/basics/builder-pattern-for-java-records/)