Expand README

README.md

@@ -2,8 +2,38 @@
 
 [![Netlify Status](https://api.netlify.com/api/v1/badges/c2fe0e49-4596-48e8-8e1a-9cf62d56bca2/deploy-status)](https://app.netlify.com/sites/contentauth/deploys)
 
-This website is built using [Docusaurus 2](https://docusaurus.io/), a modern static website generator, and deployed
-on [Netlify](https://www.netlify.com/).
+## Overview
+
+This repo contains the source code and content to generate the <https://opensource.contentauthenticity.org/> website.  This site is built using [Docusaurus 2](https://docusaurus.io/), a modern static site generator, and deployed on [Netlify](https://www.netlify.com/).
+
+### Directory structure
+
+The `docs` sub-directory contains documentation content (in markdown or `.mdx` format) in the following sub-directories:
+- [`js-sdk/api`](./docs/js-sdk/api): [API documentation](https://opensource.contentauthenticity.org/docs/js-sdk/api/) for the JavaScript library generated from the source code; see [Generating JavaScript API docs](#generating-javascript-sdk-api-docs).
+- [`js-sdk`](./docs/js-sdk/): [Other documentation](https://opensource.contentauthenticity.org/docs/js-sdk/getting-started/overview) for the JavaScript library.
+(./scripts/generate-api-docs/index.js)
+- `includes`: Markdown content imported (transcluded) into other files.
+- `manifest`: Content for the [Understanding manifests](https://opensource.contentauthenticity.org/docs/manifest/understanding-manifest) section.
+- `static`: Additional assets such as images.
+
+Additionally, the [scripts/fetch-readme.js](./scripts/fetch-readme.js) script dynamically downloads documentation files (sometimes just the `README.md` but often other markdown files, too) from other repos in the SDK. See [Running the fetch script](#running-fetch-script).
+
+This table summarizes the content that this script fetches from other repos.
+
+| Sub-directory | Content fetched from... | Description | 
+|-----------|-------------------------|-------------|
+| `c2pa-c` | [c2pa-c](https://github.com/contentauth/c2pa-c) | C library docs. |
+| `c2pa-min` | [c2pa-min](https://github.com/contentauth/c2pa-min) | Minimal Rust example app. |
+| `c2pa-node` | [c2pa-node](https://github.com/contentauth/c2pa-node) | Node library docs. |
+| `c2pa-node-example`  | [c2pa-node-example](https://github.com/contentauth/c2pa-node-example) | Node example app.|
+| `c2pa-python` | [c2pa-python](https://github.com/contentauth/c2pa-python) | Python library docs. |
+| `c2pa-python example` | [c2pa-python-example](https://github.com/contentauth/c2pa-python-example) | Python example app. |
+| `c2pa-service-example` | [c2patool-service-example](https://github.com/contentauth/c2patool-service-example) | C2PA Tool service example app. |
+| `c2patool` | [c2pa-rs cli directory](https://github.com/contentauth/c2pa-rs/cli) | C2PA Tool docs. |
+| `js-sdk` | [c2pa-js](https://github.com/contentauth/c2pa-js) | JavaScript library docs. |
+| `rust-sdk` | [c2pa-rs](https://github.com/contentauth/c2pa-rs) | Rust library docs. |
+
+The [Manifest store reference](https://opensource.contentauthenticity.org/docs/manifest/manifest-ref) is an HTML file generated by the  [json-manifest-reference](https://github.com/contentauth/json-manifest-reference) repository and imported manually.
 
 ## Installation
 
@@ -16,7 +46,7 @@ $ npm install
 
 ## Local development
 
-**Prerequisite**: To build the site locally, you must first check out the JavaScript library in a sibling directory and build the API docs there.  In the parent directory of `opensource.contentauth.org`, enter these commands:
+**Prerequisite**: To build the site locally, you must first check out the JavaScript library in a sibling directory and build the API docs there.  In the parent directory of the `opensource.contentauth.org` directory, enter these commands:
 
 ```
 $ git clone [email protected]:contentauth/c2pa-js.git
@@ -34,23 +64,23 @@ This command starts a local development server and opens up a browser window. Mo
 
 ### Running fetch script
 
-The `/scripts/fetch-readme.js` script pulls markdown files from other repos (e.g. `c2patool`). To rerun this script for local build, enter this command:
+The `/scripts/fetch-readme.js` script pulls markdown files from other repos (e.g. `c2pa-rs`). To rerun this script for local build, enter this command:
 
 ```
 npm run docs:fetch-readme
 ```
 
-NOTE: If you added a **new** repo to get .md files from, then you need to manually add the directory, add a `.gitkeep` file to it, and then commit it to Git.
+NOTE: If you need to get markdown files from a **new** repo that you added, then you need to manually add the sub-directory, add a `.gitkeep` file to it, and then commit it to this repository.
 
-### Generate JavaScript SDK API docs
+### Generating JavaScript SDK API docs
 
-The `/scripts/generate-api-docs/index.js` script generates API docs for the JS SDK. To run this script for local build, enter this command:
+The `/scripts/generate-api-docs/index.js` script generates API docs for the JS SDK (assuming you've checked it out in a sibling directory). To run this script for local build, enter this command:
 
 ```
 npm run docs:generate-api-docs
 ```
 
-## Build
+### Building
 
 ```
 $ npm run build
@@ -60,8 +90,7 @@ This command generates static content into the `build` directory and can be serv
 
 ### Deployment
 
-Deployments are handled automatically by Netlify. Please open up a pull request with any changes and a preview site
-should be created automatically so that the preview can be shared before merging.
+Deployments are handled automatically by Netlify. Please open up a pull request with any changes and a preview site will be created automatically so you can share what the rendered site will look like before merging.
 
 ### Forcing a site rebuild
 

docs/manifest/understanding.md

@@ -1,6 +1,6 @@
 ---
 id: understanding-manifest
-title: Working with manifests
+title: Understanding manifests
 ---
 
 ## Overview

sidebars.js

@@ -24,7 +24,7 @@ const sidebars = {
     },
     {
       type: 'category',
-      label: 'Working with manifests',
+      label: 'Understanding manifests',
       link: { type: 'doc', id: 'manifest/understanding-manifest' },
       collapsed: true,
       items: [