* fix erc20 fee token decimals to 18
* lint
* Update contracts/GSN/bouncers/GSNBouncerERC20Fee.sol
Co-Authored-By: Nicolás Venturo <nicolas.venturo@gmail.com>
* change location of hardcoded decimals for clarity
* remove mention of decimals from docs
* remove trailing whitespace from guide
(cherry picked from commit b8ccf8e0f1)