Use consistent code block style in installation docs
Using the console code-block style also has the benefit of making the
initial '$' not-selectable, which makes copy-paste nicer!
@@ -3,14 +3,14 @@ Installation
To install the current release from PyPI.
-::
+.. code-block:: console
$ pip install siliconcompiler
To install from the latest SiliconCompiler developer repository.
-::
+.. code-block:: console
$ git clone https://github.com/siliconcompiler/siliconcompiler
$ cd siliconcompiler
