Update Kotlin version in README.md

Author: mikekpl

README.md

@@ -1,6 +1,6 @@
 # Pokédex using Jetpack Compose
 
-A Pokémon list project that exhibits the next generation way for us to build our multi-module Android Applications using Kotlin 2.1.20, Jetpack Compose, Hilt, Clean Architecture, and more...
+A Pokémon list project that exhibits the next generation way for us to build our multi-module Android Applications using Kotlin 2.3.20, Jetpack Compose, Hilt, Clean Architecture, and more...
 
 <p align="center">
 <img src="https://raw.githubusercontent.com/mike14u/pokedex/main/images/showcase.png" />
@@ -90,4 +90,4 @@ distributed under the License is distributed on an "AS IS" BASIS,
 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 See the License for the specific language governing permissions and
 limitations under the License.
-```
+```