Update README.md

feat: cmake support for examples & fix builds for linux on some examples

fix: change inline to static inline for hashtable getter/setter functions

fix: enhance visualization settings in render_nuklear function

fix: update sprintf usage for safer string formatting

fix: increase spheres array size for enhanced shape handling

fix: remove CGL_LOG definition to streamline logging approach

fix: update CGL_widgets_add_string_with_font to include alpha parameter for better text rendering

fix: add return statement to dummy_payload_function for proper thread handling

fix: update CRC64 printf format specifier for correct output

fix: replace Sleep with CGL_utils_sleep for cross-platform compatibility

chore: add build.linux and build.windows to .gitignore

feat: set C++ standard to 17 in CMake configuration

chore: format examples to google style

chore: format cgl.h to google style