Updated the icons and splash screens section of the Readme document
Updated the icons and splash screens section of the Readme document

Boltmade/cordova-plugin-offline-page,lijie371/ManifoldCordova,lijie371/ManifoldCordova,manifoldjs/ManifoldCordova,Boltmade/cordova-plugin-offline-page,lijie371/ManifoldCordova,manifoldjs/ManifoldCordova,manifoldjs/ManifoldCordova