fix readme rendering

blink1073 · blink1073 · commit 7cba49c14f5c · 2019-08-10T16:46:33.000-05:00
diff --git a/README.rst b/README.rst
@@ -48,7 +48,8 @@ Kernel Times Out While Starting
 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
 If the kernel is not starting, try running the following from a terminal.
 
-.. code
+.. code::shell
+
   python -m matlab_kernel.check
 
 Please include that output if opening an issue.
