Fix license in readme

README.md

@@ -132,6 +132,7 @@ sudo autopkgtest ../*.deb -- schroot stretch-amd64-sbuild
 
 libshadertoy - Vincent Tavernier <vincent.tavernier@inria.fr>
 
+```
 License: MIT
  Permission is hereby granted, free of charge, to any person obtaining a
  copy of this software and associated documentation files (the "Software"),
@@ -139,10 +140,10 @@ License: MIT
  the rights to use, copy, modify, merge, publish, distribute, sublicense,
  and/or sell copies of the Software, and to permit persons to whom the
  Software is furnished to do so, subject to the following conditions:
- .
+
  The above copyright notice and this permission notice shall be included
  in all copies or substantial portions of the Software.
- .
+
  THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
  OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
@@ -150,3 +151,4 @@ License: MIT
  CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
  TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
  SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+```