Update README.md

Author: ValentinFunk

README.md

@@ -20,13 +20,13 @@ Android Quiz App in Material Design made with Java. Designed for tablets in land
 
 At the moment there are only German language strings, English will be added soon.
 
-![Category Selection](https://hostr.co/file/IJiUrngctBpv/2016-05-1808.02.06.png)
-![Category Selection](https://hostr.co/file/3SKdkFO0KuJ3/2016-05-1808.06.01.png)
-![Category Selection](https://hostr.co/file/tgq7Z0i3tVvf/2016-05-1808.06.09.png)
-![Category Selection](https://hostr.co/file/FEt2pZZi3Gcg/2016-05-1808.06.27.png)
-![Category Selection](https://hostr.co/file/uXxKcOh8eNLa/2016-05-1808.06.13.png)
-![Category Selection](https://hostr.co/file/5qRUjQ5nN88H/2016-05-1808.02.11.png)
-![Category Selection](https://hostr.co/file/vDmUfm2Xtu2C/2016-05-1808.02.40.png)
+![Category Selection](https://hostr.co/file/IJiUrngctBpv/2016-05-1808.02.06.png | width=200)
+![Category Selection](https://hostr.co/file/3SKdkFO0KuJ3/2016-05-1808.06.01.png | width=200)
+![Category Selection](https://hostr.co/file/tgq7Z0i3tVvf/2016-05-1808.06.09.png | width=200)
+![Category Selection](https://hostr.co/file/FEt2pZZi3Gcg/2016-05-1808.06.27.png | width=200)
+![Category Selection](https://hostr.co/file/uXxKcOh8eNLa/2016-05-1808.06.13.png | width=200)
+![Category Selection](https://hostr.co/file/5qRUjQ5nN88H/2016-05-1808.02.11.png | width=200)
+![Category Selection](https://hostr.co/file/vDmUfm2Xtu2C/2016-05-1808.02.40.png | width=200)
 
 Licensed under GPLv3