adding theme switcher to readme

README.md

@@ -73,6 +73,8 @@ required to complete them.
 | [Roman to Decimal Converter](./Projects/1-Beginner/Roman-to-Decimal-Converter.md) | Convert Roman to Decimal numbers                           | 1-Beginner |
 | [Slider Design](./Projects/1-Beginner/Slider-Design.md)                           | Display images using a slider control                      | 1-Beginner |
 | [Stopwatch App](./Projects/1-Beginner/Stopwatch-App.md)                           | Count time spent on activities                             | 1-Beginner |
+| [Theme Switcher](./Projects/1-Beginner/Theme-Switcher.md)                         | Switch theme (light or dark) of a website                  |
+| 1-Beginner                                                                        |
 | [TrueOrFalse](./Projects/1-Beginner/True-or-False-App.md)                         | Identify the result of a conditional comparison            | 1-Beginner |
 | [Vigenere Cipher](./Projects/1-Beginner/Vigenere-Cipher.md)                       | Encrypt text using the Vigenere Cypher                     | 1-Beginner |
 | [Wind Chill](./Projects/1-Beginner/Windchill-App.md)                              | Calculate the windchill factor from an actual temperature  | 1-Beginner |