Update versions in readme

Pre-install a bunch of php modules and remove default https config

UPT: grpc v1.25.0 and protobuf v3.10.0

ADD: install php modules grpc v1.22.0 and protobuf v3.9.1

UPT: yarn install via apt-get

UPT: enable sqlite3

UPT: upgrade composer to v1.8.6; node to v10.16.0; php to v7.2.19

UPT: upgrade composer to v1.8.5; nginx to v1.16.0; node to v10.15.3; …

…php to v7.2.17

UPT: upgrade nvm to v0.34.0; node to v10.15.0

UPT: change ssl certificates folder to /etc/nginx/certs