Instructions in the README to build the project

[ayyagari]

1. std::optional is used as of 45-buzzdb.cpp. This requires C++ 17 and above. I'd recommend compilation command be g++ -std=c++17 -O3 -Wall -Werror -Wextra <module_name>.cpp (and similarly for the one to generate debug symbols)
2. On Apple silicon Macs, the error error: use of undeclared identifier 'assert' occurs on compilation as #include <cassert> is not there in the buzzdb.cpp file. This can be addressed under Apple Mac section if needed.

[jarulraj]

Thanks for reporting them, @ayyagari :) Updated the readme.