license / docs pass:

- add new docs for loading, exploring, sharing, embedding, and offline usage
- add license file / license banner

electron app:
- for now, don't bundle docs, open in native browser

embeds:
- support 'embed' option, 'replayonly' or 'full' (default if no url)

ui:
- display package.json version in info menu

package.json:
- update scripts to match README
- move electron entrypoint into extraMetadata
- add scripts for packaging as module

README: minor edits

docs/usage.md

@@ -10,11 +10,26 @@ permalink: /docs/index.html
 # ReplayWeb.Page
 ## Serverless / Client-Side Web Archive Replay
 
-A browser-based system to replay archived web pages as accurately as possible, with all interactive elements preserved.
 {: .fs-6 .fw-300 }
+ReplayWeb.page is an [open-source](https://github.com/webrecorder/replayweb.page) browser-based system to replay archived web pages as accurately as possible, with interactive elements preserved.
 
-No server necessary. Archives can be loaded as static files from anywhere a browser can connect to.
 {: .fs-6 .fw-300 }
+Archives can be loaded as static files from anywhere a browser can connect to, or from users local machine.
+
+{: .fs-6 .fw-300 }
+ReplayWeb.page provides the following features:
+
+- High-Fidelity replay of web archives in [several formats](formats) and from [various locations](locations) directly in the browser.
+
+- Several way to [explore web archives](explore): story view, page search and url search.
+
+- On-demand, incremental [loading of large archives](loading#loading-large-files-full-vs-on-demand-loading/).
+
+- Several options for fully-functional [offline usage](offline).
+
+- Available as a standalone [desktop app](https://github.com/webrecorder/replayweb.page/releases) with Flash support.
+
+- Support for [versioned embedding of web archives](embedding).