add documentation for package dependencies if it is used in vite

[JinIgarashi]

I had an error of TypeError: EventEmitter is not a constructor when I use it with vite.

I found the below stackoverflow, https://stackoverflow.com/questions/69717406/typeerror-eventemitter-is-not-a-constructor-at-new-mapboxgeocoder

then, I found the following dependencies are necessary to use this geocoder.

npm i -D events @types/events @types/node

I am not sure how many people are using vite with this geocoder, but this dependencies info can be documented somewhere in the repo. I think vite is becoming more popular.