Fix screenshots

README.md

@@ -4,8 +4,8 @@
 
 *Since the 1st of April 2018 this project has moved to it's own Organisation (https://github.com/LycheeOrg) where people are able to submit their fixes to it. We, the Organisation owners, want to thank electerious (Tobias Reich) for the opportunity to make this project live on.*
 
-![Lychee](http://l.electerious.com/uploads/big/c4b58cb87d95aeaed78fdca581cc908c.jpg)
-![Lychee](http://l.electerious.com/uploads/big/075ac5de5b5d6c593acbb700f0e1d739.jpg)
+![Lychee](https://s.electerious.com/images/lychee/1.jpeg)
+![Lychee](https://s.electerious.com/images/lychee/2.jpeg)
 
 Lychee is a free photo-management tool, which runs on your server or web-space. Installing is a matter of seconds. Upload, manage and share photos like from a native application. Lychee comes with everything you need and all your photos are stored securely. Try the [Live Demo](http://ld.electerious.com) or read more on our [Website](http://lychee.electerious.com).