docs: a simple README, subject to further refinement

Author: haoqunjiang

template/config/base/README.md

@@ -0,0 +1,17 @@
+# Vue 3 + Vite
+
+This template should help get you started developing with Vue 3 in Vite.
+
+## Recommended IDE Setup
+
+[VSCode](https://code.visualstudio.com/) + [Volar](https://marketplace.visualstudio.com/items?itemName=johnsoncodehk.volar) (and disable Vetur).
+
+## Type Support for `.vue` Imports in TS
+
+Since TypeScript cannot handle type information for `.vue` imports, they are shimmed to be a generic Vue component type by default. In most cases this is fine if you don't really care about component prop types outside of templates.
+
+However, if you wish to get actual prop types in `.vue` imports (for example to get props validation when using manual `h(...)` calls), you can run `Volar: Switch TS Plugin on/off` from VSCode command palette.
+
+### Customize configuration
+
+See [Vite Configuration Reference](https://vitejs.dev/config/).