Add HelloBakge tutorial
tutorial/HelloBakge: Change section header size
tutorial/HelloBakge: Complete Fork, Clone and Build sections
tutorial/HelloBakge: Update Build section
tutorial/HelloBakge: Add reporting errors info
tutorial/HelloBakge: Add new project section
tutorial/HelloBakge: Update own project section
tutorial/HelloBakge: Format tweak
tutorial/HelloBakge: Add additional notes