update typos in the targets episode

content/additional-topics.rst

@@ -28,7 +28,6 @@ These topics include:
 
 
 
-
 Summary of `Intro to CMake`
 ---------------------------
 

content/targets.rst

@@ -99,20 +99,20 @@ Why it is robust to use targets and properties than using variables? Given a tar
 
 	In this demo, we split the source code into 3 libraries and all files are available in the ``content/code/04_visibility-levels/`` folder.
 
-	.. code-block:: bash
-
-     .
-     ├── CMakeLists.txt
-     ├── greeting
-     │   ├── greeting.cpp
-     │   └── greeting.hpp
-     ├── hello_world
-     │   ├── hello_world.cpp
-     │   └── hello_world.hpp
-     ├── main.cpp
-     └── world
-         ├── world.cpp
-         └── world.hpp
+	.. code-block:: text
+
+      .
+      ├── CMakeLists.txt
+      ├── greeting
+      │   ├── greeting.cpp
+      │   └── greeting.hpp
+      ├── hello_world
+      │   ├── hello_world.cpp
+      │   └── hello_world.hpp
+      ├── main.cpp
+      └── world
+          ├── world.cpp
+          └── world.hpp
 
 
 In this source code, the main function links to greeting which links to hello_world which links to world.