message: add 5-step plain vanilla build instructions
  with the latest FetchContent dependencies are automatic
diff: @@ -25,6 +25,15 @@ or scivis renderer.
  ## Building OSPRay Studio
  +tl;dr - For most installations, these 5 steps will build a plain vanilla OSPRay Studio
  +``` bash
  + 1. git clone https://github.com/ospray/ospray_studio.git
  + 2. mkdir ospray_studio/build
  + 3. cd ospray_studio/build
  + 4. cmake ..
  + 5. cmake --build .
  +```
  +
  OSPRay Studio has the following required and optional dependencies.
  ### Required dependencies
  