Add documentation on GH pages (#85)

* Add documentation on GH pages

* Expand classes for doc generation

* Update docs

* .nojekyll

* Update Identicon.tsx

* Update Demo.tsx

* Update KeyPair.tsx

* Export specific icons

* Convert tests to TypeScript

docs/.vuepress/config.js

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+module.exports = {
+  base: '/ui/',
+  title: 'polkadot-js/ui',
+  description: 'UI libraries and utilities in-use accross @polkadot projects',
+  markdown: {
+    lineNumbers: true
+  },
+  themeConfig: {
+    displayAllHeaders: true,
+    lastUpdated: 'Last Updated',
+    nav: [
+      { text: 'GitHub', link: 'https://github.com/polkadot-js/ui' }
+    ],
+    sidebar: [
+      ['/ui-identicon/', '@polkadot/ui-identicon'],
+      ['/ui-keyring/', '@polkadot/ui-keyring'],
+      ['/ui-settings/', '@polkadot/ui-settings'],
+      ['/ui-util/', '@polkadot/ui-util'],
+      '/CONTRIBUTING.md'
+    ]
+  }
+};

docs/.vuepress/styles/palette.styl

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+$accentColor = #fd8824

docs/CONTRIBUTING.md

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+# Contributing
+
+## What?
+
+Individuals making significant and valuable contributions are given commit-access to a project to contribute as they see fit.
+A project is more like an open wiki than a standard guarded open source project.
+
+## Rules
+
+There are a few basic ground-rules for contributors (including the maintainer(s) of the project):
+
+1. **No `--force` pushes** or modifying the Git history in any way. If you need to rebase, ensure you do it in your own repo.
+2. **Non-master branches**, prefixed with a short name moniker (e.g. `<initials>-<feature>`) must be used for ongoing work.
+3. **All modifications** must be made in a **pull-request** to solicit feedback from other contributors.
+4. A pull-request *must not be merged until CI* has finished successfully.
+
+#### Merging pull requests once CI is successful:
+- A pull request with no large change to logic that is an urgent fix may be merged after a non-author contributor has reviewed it well.
+- No PR should be merged until all reviews' comments are addressed.
+
+#### Reviewing pull requests:
+When reviewing a pull request, the end-goal is to suggest useful changes to the author. Reviews should finish with approval unless there are issues that would result in:
+
+- Buggy behaviour.
+- Undue maintenance burden.
+- Breaking with house coding style.
+- Pessimisation (i.e. reduction of speed as measured in the projects benchmarks).
+- Feature reduction (i.e. it removes some aspect of functionality that a significant minority of users rely on).
+- Uselessness (i.e. it does not strictly add a feature or fix a known issue).
+
+#### Reviews may not be used as an effective veto for a PR because:
+- There exists a somewhat cleaner/better/faster way of accomplishing the same feature/fix.
+- It does not fit well with some other contributors' longer-term vision for the project.
+
+## Releases
+
+Declaring formal releases remains the prerogative of the project maintainer(s).
+
+## Changes to this arrangement
+
+This is an experiment and feedback is welcome! This document may also be subject to pull-requests or changes by contributors where you believe you have something valuable to add or change.
+
+## Heritage
+
+These contributing guidelines are modified from the "OPEN Open Source Project" guidelines for the Level project: [https://github.com/Level/community/blob/master/CONTRIBUTING.md](https://github.com/Level/community/blob/master/CONTRIBUTING.md)

docs/README.md

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+# Polkadot Javascript UI libraries
+
+This is a collection of UI (Rwact) libraries, utlities and classes that allows for easier use of the Polkadot JS infrstaructure inside your apps.
+
+## The Polkadot Project
+
+You can read more about the Polkadot Network at [https://polkadot.network/](https://polkadot.network/) and more about the polkadot-js projects at [https://polkadot.js.org](https://polkadot.js.org)
+
+## Github repositories
+
+You can find the Polkadot repositories at:
+
+- [https://github.com/polkadot-js](https://github.com/polkadot-js)
+- [https://github.com/paritytech/polkadot](https://github.com/paritytech/polkadot)
+- [https://github.com/paritytech/substrate](https://github.com/paritytech/substrate)
+
+This documentation is generated from [https://github.com/polkadot-js/ui](https://github.com/polkadot-js/ui)
+
+## Contributing
+
+Contribution to the Polkadot JS projects are more than welcome. You can [report issues](https://github.com/polkadot-js/ui/issues/new) and [log feature requests](https://github.com/polkadot-js/ui/issues/new).