add credits, rm useless img

README.md

@@ -38,12 +38,28 @@ scripts/install.sh
 
 See [CHANGELOG].
 
-## License
+## License and credits
 
-See [LICENSE].
+For the CSS, I used [Bootstrap], [NES.css] and the [Press Start 2P] font.
+To generate the favicon stuff, I used [RealFaviconGenerator].
+Most of the images are the same that are used in [html5-bombergirl].
+I also used a [bomb image from pixabay], a JS logo from [logo.js] and a [star image from SVG Silh].
+The music is from [DL Sounds].
+
+All the other files are original content and published under the ISC license, see [LICENSE].
 
 [CHANGELOG]: ./CHANGELOG.md
 [LICENSE]: ./LICENSE.md
 [online instance]: https://bomberman.zapashcanon.fr
 [flow]: https://flow.org/
 [decent]: https://www.debian.org/
+[NES.css]: https://nostalgic-css.github.io/NES.css/
+[Bootstrap]: https://getbootstrap.com/
+[Press Start 2P]: https://fonts.google.com/specimen/Press+Start+2P
+[RealFaviconGenerator]: https://github.com/RealFaviconGenerator
+[html5-bombergirl]: https://github.com/MattSkala/html5-bombergirl#credits
+[bomb image from pixabay]: https://pixabay.com/vectors/bomb-cartoon-iconic-2025548/
+[logo.js]: https://github.com/voodootikigod/logo.js
+[star image from SVG Silh]: https://svgsilh.com/image/1076611.html
+[DL Sounds]: https://www.dl-sounds.com/royalty-free/intro-screen/
+