[Bug][Doc] Missing dependency glog in macOS - with Homebrew section

[snowmantw]

I encountered the error and found the Homebrew section need to add the installation of this:

brew install glog

While the APT section already has it: libgoogle-glog-dev.

And actually for MacOSX user there is another bison version issue, which means maybe the section should be:

xcode-select --install
brew install git autoconf automake libtool pkg-config protobuf coreutils glog

# If bison is too old: (`bison -V` == 2.3)
brew install bison
echo 'export PATH="/usr/local/opt/bison/bin:$PATH"' >> ~/.bash_profile
export LDFLAGS="-L/usr/local/opt/bison/lib"