Update entity_types.ts.tt (#267)

Author: MIchaelMainer

Templates/TypeScript/src/entity_types.ts.tt

@@ -20,6 +20,7 @@
 //                 Peter Ombwa <https://github.com/peombwa>
 //                 Mustafa Zengin <https://github.com/zengin>
 //                 DeVere Dyett <https://github.com/ddyett>
+//                 Nikitha Udaykumar Chettiar <https://github.com/nikithauc>
 // Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
 // TypeScript Version: 2.1