add eslintrc.json for windows machine

[garyng2000]

if I just clone and start, I see a lot of prettier error due to the CRLF thing, need to add this to the eslintrc.json file(well if there are other ones in the future, that prettier/prettier block

{ "extends": [ "react-app", "prettier" ], "plugins": [ "prettier" ], "rules": { "prettier/prettier": [ "error", { "endOfLine": "auto" } ] } }