it is very important for your resources to be included in your project. links to outside sources can easily become broken if that source decides to change where they are stored or take them down. use relative file paths to link to your locally saved images inside of resources.
more info about relative file paths can be found here
https://github.com/hindmiguel/TeaCozy/blob/master/index.html#L53 https://github.com/hindmiguel/TeaCozy/blob/master/resources/css/style.css#L46 etc...
it is very important for your resources to be included in your project. links to outside sources can easily become broken if that source decides to change where they are stored or take them down. use relative file paths to link to your locally saved images inside of resources. more info about relative file paths can be found here