Show actual fragment shader

docs/01-basics/02-basic-window-and-triangle.md

@@ -166,7 +166,13 @@ What does it do? It creates an `OpenGL` object to represent a program, we will p
 If there was problem it will be returned as error message and if everything was alright we will
 get back the program itself.
 
-Here is how we use it to create the vertex shader we need
+The vertex shader itself:
+
+```cpp
+--8<-- "src/01-02-BasicWindowAndTriangle/Main.cpp:211:228"
+```
+
+And here is how we create a program out of it.
 
 ```cpp
 --8<-- "src/01-02-BasicWindowAndTriangle/Main.cpp:242:248"
@@ -217,6 +223,14 @@ The fragment shader takes the fragments from the rasterizer stage and "colors" t
 
 The fragment shader is also an object we create, similar to the vertex shader
 
+The fragment shader itself
+
+```cpp
+--8<-- "src/01-02-BasicWindowAndTriangle/Main.cpp:230:240"
+```
+
+And we also create a program out of it like so
+
 ```cpp
 --8<-- "src/01-02-BasicWindowAndTriangle/Main.cpp:250:256"
 ```