dependency upgrades (#48)

.github/workflows/validate.yml

@@ -11,7 +11,7 @@ jobs:
     strategy:
       matrix:
         os: [ubuntu-latest, windows-latest, macOS-latest]
-        node-version: [16.x, 18.x]
+        node-version: [18.x, 20.x]
     steps:
       - uses: actions/checkout@v3
       - name: Use Node.js ${{ matrix.node-version }} on ${{ matrix.os }}

README.md

@@ -15,6 +15,7 @@ Since TypeScript cannot handle type information for `.vue` imports, they are shi
 ## Getting started
 
 - Install [node LTS](https://nodejs.org/en/download/)
+  - Currently 18.x (deprecated) and 20.x (current) are supported
 - run `npm i` in the root dir to install all dependencies
 
 ## Commands