Update readme. Add build instructions

[Menooker]

No description provided.

[Menooker]

Depends on #66

[ZhennanQin]

Since this is the readme file of this repo, we can skip the clone step.

[kurapov-peter]

Fine overall. I suggest adding the default build option with fetching llvm installation via gh. @leshikus, please take a look.

[ciyongch]

Please rebase.

[leshikus]

I believe a shorter instruction to run scripts/compile.sh would be simpler. This also automatically installs llvm for a user

Why readme does not say what the graph compiler is for? I still don't know

[Menooker]

Updates: recommend users to use the all-in-one script. Added a brief description for the project.

[leshikus]

compile.sh still requires some dependencies to be installed first to work,

graph-compiler/.github/dockerfiles/env/Dockerfile

Line 16 in 5de3506

apt-get install -y --no-install-recommends --fix-missing gh; \

[Menooker]

compile.sh still requires some dependencies to be installed first to work,

graph-compiler/.github/dockerfiles/env/Dockerfile

Line 16 in 5de3506

apt-get install -y --no-install-recommends --fix-missing gh; \

I am not sure the system requirements of using compile.sh. Let's update it later!