V1.2
Add API key support.
Please get a free API key from https://free.currencyconverterapi.com/free-api-key
To configure your API key, please refer to https://github.com/TimothyYe/exchangerate#get-api-key
Add API key support.
Please get a free API key from https://free.currencyconverterapi.com/free-api-key
To configure your API key, please refer to https://github.com/TimothyYe/exchangerate#get-api-key