Now generating a `docs/index.html` page that links to the documentation for all of the modules in the repo that have documentation enabled (`Stripe` & `StripeIdentity`). The index page reuses the same html template as the Jazzy theme we use to generate our docs. The descriptions that display for each module are populated by the summary in their podspec file. With the next deploy, this page will be visible at https://stripe.dev/stripe-ios.
Updated our `build_documentation` script to iterate through all modules which we want to build docs for and create a separate docs directory.
- `Stripe` module will continue to build its docs to the `docs/docs` folder so we don't invalidate any pre-existing documentation links (there's [a lot of references](https://livegrep.corp.stripe.com/search/stripe?q=stripe-ios%2Fdocs&fold_case=auto®ex=false&context=true)).
- `StripeIdentity` will generate its docs to `docs/stripe-identity`
- Any future SDK which we want to generate docs for, can use the same pattern of `docs/{{module-name}}`