Same license, just updated formatting in README

Author: lokesh

README.md

@@ -24,15 +24,9 @@ by Lokesh Dhakar
 * careilly - [(https://github.com/careilly)](https://github.com/careilly)
 * and many others. Thanks!!!
 
-##License
-
-<a rel="license" href="http://creativecommons.org/licenses/by/2.5/"><img alt=
-  "Creative Commons License" style="border-width:0" height="31" src=
-  "http://mirrors.creativecommons.org/presskit/buttons/88x31/svg/by.svg" /></a><br/>
-  <span xmlns:dct="http://purl.org/dc/terms/" property="dct:title">lightbox2</span> by <a xmlns:cc=
-  "http://creativecommons.org/ns#" href="http://lokeshdhakar.com/projects/lightbox2/" property=
-  "cc:attributionName" rel="cc:attributionURL">Lokesh Dhakar</a> is licensed under a <a rel=
-  "license" href="http://creativecommons.org/licenses/by/2.5/">Creative Commons Attribution 2.5 License</a>.
-
-* Free for use in both personal and commercial projects.
-* Attribution requires leaving author name, author homepage link, and the license info intact.
+## License
+
+- **100% Free.** Lightbox is free to use in both personal and commercial work.
+- **Attribution is required. This means, leaving the author name, author homepage link, and the license info intact. It does not have to be publicly visible, but must remain alongside the code.
+
+<a rel="license" href="http://creativecommons.org/licenses/by/4.0/"><img alt="Creative Commons License" style="border-width:0" src="https://i.creativecommons.org/l/by/4.0/88x31.png" /></a><br /><span xmlns:dct="http://purl.org/dc/terms/" href="http://purl.org/dc/dcmitype/Text" property="dct:title" rel="dct:type">lightbox2</span> by <a xmlns:cc="http://creativecommons.org/ns#" href="http://lokeshdhakar.com" property="cc:attributionName" rel="cc:attributionURL">Lokesh Dhakar</a> is licensed under a <a rel="license" href="http://creativecommons.org/licenses/by/4.0/">Creative Commons Attribution 4.0 International License</a>.