* This PR is against a branch called `main`
* Internally all docs/CI/etc is updated
* The default branch of the repo is now `main`
* All active PRs have been updated to retarget `main`
Closes#1914
* Add documentation for building programs using AssemblyScript.
* Add the assemblyscript hello world as an example and display it inline.
* Move the AssemblyScript hello world into the docs directory.
That way Cargo doesn't try to run it like a Rust example.