Changed Lunix for Linux 

"Lunix" while going over cli docs.
diff --git a/user_guide_src/source/general/cli.rst b/user_guide_src/source/general/cli.rst
index 7dc1ca3..649d5d5 100644
--- a/user_guide_src/source/general/cli.rst
+++ b/user_guide_src/source/general/cli.rst
@@ -52,7 +52,7 @@
 
 	example.com/index.php/tools/message/to
 
-Instead, we are going to open Terminal in Mac/Lunix or go to Run > "cmd"
+Instead, we are going to open Terminal in Mac/Linux or go to Run > "cmd"
 in Windows and navigate to our CodeIgniter project.
 
 .. code-block:: bash