Fixed misspelling in the README
Fixed misspelling in the README

Github: close #88

Lazza/cordova-plugin-splashscreen,sportstech/cordova-plugin-splashscreen,sportstech/cordova-plugin-splashscreen,petermetz/cordova-plugin-splashscreen,petermetz/cordova-plugin-splashscreen,Lazza/cordova-plugin-splashscreen,apache/cordova-plugin-splashscreen,hebert-nr/spin,Lazza/cordova-plugin-splashscreen,sportstech/cordova-plugin-splashscreen,hebert-nr/spin,petermetz/cordova-plugin-splashscreen,hebert-nr/spin,Lazza/cordova-plugin-splashscreen,sportstech/cordova-plugin-splashscreen,petermetz/cordova-plugin-splashscreen,hebert-nr/spin,hebert-nr/spin