Hi,

thanks for such great, easy-to-use API !

I'd like to be able to customize http.Client in every provider (I mean If I use multiple providers at one time, same config'd be passed to each one)
Also, from what I've found out, currently only musixmatch uses http.Client:

Example usage case:

• to be able to use proxies (e.g. for anonymization)
• increase timeout
• someone may use predefined config like here
• ... (All other http.Client goods)

This could be controlled like below:

import ("github.com/hashicorp/go-retryablehttp")
...
myClient := retryablehttp.NewClient().StandardClient() // Example of modified http.Client predefined in above lib
l := lyrics.New(myClient) // Passing it to the lyrics provider
...

Thanks in advance :)