changed blocks for highlighting

Author: jsl12

docs/DASHBOARD_INSTALL.rst

@@ -130,6 +130,6 @@ The dashboard URL supports a couple of extra parameters:
 For example, the following url will load a dashboard called main with the
 obsidian skin:
 
-::
+.. code-block:: text
 
     http://<ip address>:<port>/Main?skin=obsidian

docs/INSTALL.rst

@@ -298,7 +298,7 @@ are set according to your setup.
 - CONFIG_DIR
    - Location of Home Assistant config.
 
-::
+.. code-block:: shell
 
     #!/bin/sh
     ### BEGIN INIT INFO