Fix doc typo

Author: jgoeders

BUILDING.md

@@ -5,10 +5,8 @@
 
 If you cloned the repository you will need to set up the git submodules (if you downloaded and extracted a release, you can skip this step):
 
-.. code-block:: bash
-
-    > git submodule init
-    > git submodule update
+    git submodule init
+    git submodule update
 
 VTR requires several system packages.  From the top-level directory, run the following script to install the required packages on a modern Debian or Ubuntu system: