rename 'runtime' interface name to 'store'

[Mossaka]

It renames:

runtime -> store
config-error -> error

and

delete the hand-written config.md in preference of the generated imports.md doc. Closes #13

question: I remember we briefly discussed this but I forgot about the rationals behind the subtle difference between the proposal name "wasi-runtime-config" and the actual WIT package name "wasi:config", what are the reasons? Could we rename this repo to "wasi-config" but keeps runtime configuration as an option in the README? @thomastaylor312 @lukewagner

[lukewagner]

Thanks! To your question: originally, there was a sketch to use value imports to import configuration values, with 1 value import per individual configuration value, allowing the names of required configuration values to be known declaratively, allowing various DX/security/perf improvements. But that was a much bigger lift (for the tooling and runtime), so we instead prioritized adding a more-dynamic (runtime) configuration interface (which we'd need in any case, since sometimes you just don't know AOT what configuration you need), hence the name of the repo. Whatever the history, renaming the repo to wasi-config to match wasi:config makes sense to me. Eventually, I'd like to return to the declarative value-import approach, we could just add that to this same repo (alongside wasi:config/store).

[devigned]

Just words, no code

[devigned]

Thank you for improving upon my suggestions. LGTM!

[Mossaka]

Could you please take a look? @thomastaylor312

[thomastaylor312]

And I am all good with a repo rename