Update README instructions

+ Fix incorrect library name for `algorithms/trees/BST` example
+ Update root CMakeLists.txt for major directories to set binary path
+ Add instructions to install CMake LTS with pip

cpp/graphics/CMakeLists.txt

@@ -17,5 +17,7 @@ project(
     LANGUAGES   CXX
 )
 
+set(CMAKE_RUNTIME_OUTPUT_DIRECTORY ${CMAKE_BINARY_DIR}/bin)
+
 add_subdirectory(opengl-cmake)
 add_subdirectory(sdl-cmake)

cpp/graphics/README.md

@@ -1,6 +1,7 @@
 # Graphics
 
-Example graphics programming projects written in C++
+Example graphics programming projects written in C++. 
+For a more complete example of a graphics application, see [shaunrd0/qtk](https://gitlab.com/shaunrd0/qtk)
 
 ```
 klips/cpp/graphics
@@ -10,3 +11,21 @@ klips/cpp/graphics
 ├── sdl-cmake   # Barebones sdl application written in C++ built with cmake
 └── sdl         # Barebones sdl application written in C++ built with gcc
 ```
+
+Install dependencies for these examples with the following command
+
+```bash
+sudo apt install libsdl2-dev freeglut3-dev 
+```
+
+Then we can build the examples that have `CMakeLists.txt` configured.
+If the example does not use CMake, the commands to build and run are found within the header comments of the main source file.
+
+```bash
+cd /path/to/klips/cpp/graphics/
+mkdir build && cd build
+cmake .. && cmake --build .
+ls bin/
+
+opengl-test  sdl-test
+```

cpp/graphics/opengl-cmake/CMakeLists.txt

@@ -24,7 +24,6 @@ if (OPENGL_FOUND)
   # Link opengl-test executable to OpenGL
   target_include_directories(lib-opengl-test PUBLIC ${OPENGL_INCLUDE_DIR})
   target_link_libraries(lib-opengl-test PUBLIC ${OPENGL_LIBRARIES})
-
 else()
   message(
       "Error: CMake was unable to find the OpenGL package\n"
@@ -38,7 +37,6 @@ if (GLUT_FOUND)
   # Link lib-opengl-test executable to GLUT
   target_include_directories(lib-opengl-test PUBLIC ${GLUT_INCLUDE_DIR})
   target_link_libraries(lib-opengl-test PUBLIC ${GLUT_LIBRARIES})
-
 else()
   message(
       "Error: CMake was unable to find the GLUT package\n"